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I have a TextView in which every word is a ClickableSpan (actually a custom subclass of ClickableSpan). When a word is touched, it should be shown in bold font style. If I set textIsSelectable(false) on the TextView, it works just fine. The word is immediately bolded. But if text is selectable, then it does not work. BUT - if I touch a word and then turn the screen off and back on, when the screen display comes back on the word is bolded. I have tried everything I can think of to force a redraw (invalidate the TextView, force call Activity's onRestart(), refreshDrawableState() on the TextView, etc). What am I missing?
Here is my subclass of ClickableSpan:
public class WordSpan extends ClickableSpan
{
int id;
private boolean marking = false;
TextPaint tp;
Typeface font;
int color = Color.BLACK;
public WordSpan(int id, Typeface font, boolean marked) {
this.id = id;
marking = marked;
this.font = font;
}
#Override
public void updateDrawState(TextPaint ds) {
ds.setColor(color);
ds.setUnderlineText(false);
if (marking)
ds.setTypeface(Typeface.create(font,Typeface.BOLD));
tp = ds;
}
#Override
public void onClick(View v) {
// Empty here -- overriden in activity
}
public void setMarking(boolean m) {
marking = m;
updateDrawState(tp);
}
public void setColor(int col) {
color = col;
}
}
Here is the WordSpan instantiation code in my Activity:
... looping through words
curSpan = new WordSpan(index,myFont,index==selectedWordId) {
#Override
public void onClick(View view) {
handleWordClick(index,this);
setMarking(true);
tvText.invalidate();
}
};
... continue loop code
And here is my custom MovementMethod:
public static MovementMethod createMovementMethod ( Context context ) {
final GestureDetector detector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onSingleTapUp ( MotionEvent e ) {
return true;
}
#Override
public boolean onSingleTapConfirmed ( MotionEvent e ) {
return false;
}
#Override
public boolean onDown ( MotionEvent e ) {
return false;
}
#Override
public boolean onDoubleTap ( MotionEvent e ) {
return false;
}
#Override
public void onShowPress ( MotionEvent e ) {
return;
}
});
return new ScrollingMovementMethod() {
#Override
public boolean canSelectArbitrarily () {
return true;
}
#Override
public void initialize(TextView widget, Spannable text) {
Selection.setSelection(text, text.length());
}
#Override
public void onTakeFocus(TextView view, Spannable text, int dir) {
if ((dir & (View.FOCUS_FORWARD | View.FOCUS_DOWN)) != 0) {
if (view.getLayout() == null) {
// This shouldn't be null, but do something sensible if it is.
Selection.setSelection(text, text.length());
}
} else {
Selection.setSelection(text, text.length());
}
}
#Override
public boolean onTouchEvent ( TextView widget, Spannable buffer, MotionEvent event ) {
// check if event is a single tab
boolean isClickEvent = detector.onTouchEvent(event);
// detect span that was clicked
if (isClickEvent) {
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
WordSpan[] link = buffer.getSpans(off, off, WordSpan.class);
if (link.length != 0) {
// execute click only for first clickable span
// can be a for each loop to execute every one
if (event.getAction() == MotionEvent.ACTION_UP) {
link[0].onClick(widget);
return true;
}
else if (event.getAction() == MotionEvent.ACTION_DOWN) {
Selection.setSelection(buffer,
buffer.getSpanStart(link[0]),
buffer.getSpanEnd(link[0]));
return false;
}
}
else {
}
}
// let scroll movement handle the touch
return super.onTouchEvent(widget, buffer, event);
}
};
}
Your spans are somehow becoming immutable when the text is set as selectable (TextView#setTextIsSelectable(true)). Here is a good write-up on Understanding Spans that explains mutability of spans. I also think that this post has some good explanations
I am not sure how your spans are getting to be immutable. Maybe they are mutable but just not showing somehow? It is unclear. Maybe someone has an explanation for this behavior. But, for now, here is a fix:
When you rotate your device or turn it off and back on, the spans are recreated or just reapplied. That is why you see the change. The fix is to not try to change the spans when clicked, but to reapply it with the font bolded. That way the change will take effect. You will not even need to call invalidate(). Keep track of the bolded span so it can be unbolded later when another span is clicked.
Here is the result:
Here is main activity. (Please forgive all the hard-coding, but this is just a sample.)
MainActivity.java
public class MainActivity extends AppCompatActivity {
private TextView mTextView;
private WordSpan mBoldedSpan;
#Override
protected void onCreate(Bundle savedInstanceState) {
Typeface myFont = Typeface.DEFAULT;
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTextView = findViewById(R.id.textView);
mTextView.setTextIsSelectable(true);
mTextView.setMovementMethod(createMovementMethod(this));
SpannableString ss = new SpannableString("Hello world! ");
int[][] spanStartEnd = new int[][]{{0, 5}, {6, 12}};
for (int i = 0; i < spanStartEnd.length; i++) {
WordSpan wordSpan = new WordSpan(i, myFont, false) {
#Override
public void onClick(View view) {
// handleWordClick(index, this); // Not sure what this does.
Spannable ss = (Spannable) mTextView.getText();
if (mBoldedSpan != null) {
reapplySpan(ss, mBoldedSpan, false);
}
reapplySpan(ss, this, true);
mBoldedSpan = this;
}
private void reapplySpan(Spannable spannable, WordSpan span, boolean isBold) {
int spanStart = spannable.getSpanStart(span);
int spanEnd = spannable.getSpanEnd(span);
span.setMarking(isBold);
spannable.setSpan(span, spanStart, spanEnd, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
};
ss.setSpan(wordSpan, spanStartEnd[i][0], spanStartEnd[i][1],
Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
mTextView.setText(ss, TextView.BufferType.SPANNABLE);
}
// All the other code follows without modification.
}
activity_main.xml
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.04000002"
tools:text="Hello World!" />
</android.support.constraint.ConstraintLayout>
Here is version that uses a StyleSpan. The results are the same.
MainActivity.java
public class MainActivity extends AppCompatActivity {
private TextView mTextView;
private StyleSpan mBoldedSpan;
#Override
protected void onCreate(Bundle savedInstanceState) {
Typeface myFont = Typeface.DEFAULT;
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTextView = findViewById(R.id.textView);
mTextView.setTextIsSelectable(true);
mTextView.setMovementMethod(createMovementMethod(this));
mBoldedSpan = new StyleSpan(android.graphics.Typeface.BOLD);
SpannableString ss = new SpannableString("Hello world!");
int[][] spanStartEnd = new int[][]{{0, 5}, {6, 12}};
for (int i = 0; i < spanStartEnd.length; i++) {
WordSpan wordSpan = new WordSpan(i, myFont, false) {
#Override
public void onClick(View view) {
// handleWordClick(index, this); // Not sure what this does.
Spannable ss = (Spannable) mTextView.getText();
ss.setSpan(mBoldedSpan, ss.getSpanStart(this), ss.getSpanEnd(this),
Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
};
ss.setSpan(wordSpan, spanStartEnd[i][0], spanStartEnd[i][1],
Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
mTextView.setText(ss, TextView.BufferType.SPANNABLE);
}
// All the other code follows without modification.
}
I have a TextView in which all words are individually clickable. I want to begin with every word unstyled. Upon clicking a word, the word should become and remain underlined. I am able to clear the default underline, but nothing happens upon click. (I am capturing and even processing the click, but I cannot get the Span style to change).
The relevant code is below. Thanks in advance for the help.
Custom ClickableSpan:
class WordSpan extends ClickableSpan {
private TextPaint textpaint;
public boolean clicked = false;
#Override
public void updateDrawState(TextPaint ds) {
textpaint = ds;
ds.setUnderlineText(false);
if (clicked)
ds.setUnderlineText(true);
}
#Override
public void onClick(View v) {}
public void setClicked(boolean c) {
clicked = c;
updateDrawState(textpaint);
}
}
From onCreate() I am parsing a txt file and adding each word to a TextView. Within this parsing loop I have the following code:
SpannableString ss = new SpannableString(word.toString());
WordSpan clickableSpan = new WordSpan() {
#Override
public void onClick(View view) {
setClicked(true);
view.invalidate();
}};
ss.setSpan(clickableSpan, 0, word.toString().length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
tvText.append(ss);
tvText.append(" ");
}
tvText.setMovementMethod(LinkMovementMethod.getInstance());
To make individual word clickable you will have to add multiple clickable span to the spannable string. For example to make "foo" and "bar" individually clickable in single Textview you will have to add two clickable span, one for "foo" and other for "bar" and add them to spannable string.
In the example I have split the string using space for simplicity plus you would have to write logic for click of the span.
Clickable span which removes the underline. Additionally you can configure the background and text color on click. You can remove it if you are not going use it.
import android.text.TextPaint;
import android.text.style.ClickableSpan;
public abstract class TouchableSpan extends ClickableSpan {
private boolean mIsPressed;
private int mPressedBackgroundColor;
private int mNormalTextColor;
private int mPressedTextColor;
private int mBackgroundColor;
public TouchableSpan(int normalTextColor,int backgroundColor, int pressedTextColor, int pressedBackgroundColor) {
mBackgroundColor = backgroundColor;
mNormalTextColor = normalTextColor;
mPressedTextColor = pressedTextColor;
mPressedBackgroundColor = pressedBackgroundColor;
}
public void setPressed(boolean isSelected) {
mIsPressed = isSelected;
}
#Override
public void updateDrawState(TextPaint ds) {
super.updateDrawState(ds);
ds.setColor(mIsPressed ? mPressedTextColor : mNormalTextColor);
ds.bgColor = mIsPressed ? mPressedBackgroundColor : mBackgroundColor;
ds.setUnderlineText(!mIsPressed);
}
}
Create a LinkMovementMethod which will take care of your Span. If you remove the color provision you can alter this as well
import android.text.Layout;
import android.text.Selection;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.method.MovementMethod;
import android.view.MotionEvent;
import android.widget.TextView;
public class LinkTouchMovementMethod extends LinkMovementMethod {
private TouchableSpan mPressedSpan;
#Override
public boolean onTouchEvent(TextView textView, Spannable spannable, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
mPressedSpan = getPressedSpan(textView, spannable, event);
if (mPressedSpan != null) {
mPressedSpan.setPressed(true);
Selection.setSelection(spannable, spannable.getSpanStart(mPressedSpan),
spannable.getSpanEnd(mPressedSpan));
}
} else if (event.getAction() == MotionEvent.ACTION_MOVE) {
TouchableSpan touchedSpan = getPressedSpan(textView, spannable, event);
if (mPressedSpan != null && touchedSpan != mPressedSpan) {
mPressedSpan.setPressed(false);
mPressedSpan = null;
Selection.removeSelection(spannable);
}
} else {
if (mPressedSpan != null) {
mPressedSpan.setPressed(false);
super.onTouchEvent(textView, spannable, event);
}
mPressedSpan = null;
Selection.removeSelection(spannable);
}
return true;
}
private TouchableSpan getPressedSpan(TextView textView, Spannable spannable, MotionEvent event) {
int x = (int) event.getX();
int y = (int) event.getY();
x -= textView.getTotalPaddingLeft();
y -= textView.getTotalPaddingTop();
x += textView.getScrollX();
y += textView.getScrollY();
Layout layout = textView.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
TouchableSpan[] link = spannable.getSpans(off, off, TouchableSpan.class);
TouchableSpan touchedSpan = null;
if (link.length > 0) {
touchedSpan = link[0];
}
return touchedSpan;
}
}
Then you can use it in the following way:
TextView textView = (TextView)findViewById(R.id.hello_world);
String fooBar = "asdfasdfasdfasf asdfasfasfasd";
String[] clickSpans = fooBar.split(" ");
int clickSpanLength = clickSpans.length;
SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder();
int totalLength = 0;
int normalColor = getResources().getColor(android.R.color.black);
int clickColor = getResources().getColor(android.R.color.holo_blue_bright);
String separator = " , ";
int separatorLength = separator.length();
for (int i = 0; i < clickSpanLength; i++) {
int currentWordLength = clickSpans[i].length();
spannableStringBuilder.append(clickSpans[i]);
if (i < clickSpanLength - 1) {
spannableStringBuilder.append(" , ");
}
spannableStringBuilder.setSpan(new TouchableSpan(normalColor, Color.TRANSPARENT, clickColor, Color.TRANSPARENT) {
#Override
public void onClick(View widget) {
}
}, totalLength, totalLength + currentWordLength, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
totalLength = totalLength + currentWordLength + separatorLength;
}
textView.setText(spannableStringBuilder);
textView.setMovementMethod(new LinkTouchMovementMethod());
I'm currently rendering HTML input in a TextView like so:
tv.setText(Html.fromHtml("<a href='test'>test</a>"));
The HTML being displayed is provided to me via an external resource, so I cannot change things around as I will, but I can, of course, do some regex tampering with the HTML, to change the href value, say, to something else.
What I want is to be able to handle a link click directly from within the app, rather than having the link open a browser window. Is this achievable at all? I'm guessing it would be possible to set the protocol of the href-value to something like "myApp://", and then register something that would let my app handle that protocol. If this is indeed the best way, I'd like to know how that is done, but I'm hoping there's an easier way to just say, "when a link is clicked in this textview, I want to raise an event that receives the href value of the link as an input parameter"
Coming at this almost a year later, there's a different manner in which I solved my particular problem. Since I wanted the link to be handled by my own app, there is a solution that is a bit simpler.
Besides the default intent filter, I simply let my target activity listen to ACTION_VIEW intents, and specifically, those with the scheme com.package.name
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.VIEW" />
<data android:scheme="com.package.name" />
</intent-filter>
This means that links starting with com.package.name:// will be handled by my activity.
So all I have to do is construct a URL that contains the information I want to convey:
com.package.name://action-to-perform/id-that-might-be-needed/
In my target activity, I can retrieve this address:
Uri data = getIntent().getData();
In my example, I could simply check data for null values, because when ever it isn't null, I'll know it was invoked by means of such a link. From there, I extract the instructions I need from the url to be able to display the appropriate data.
Another way, borrows a bit from Linkify but allows you to customize your handling.
Custom Span Class:
public class ClickSpan extends ClickableSpan {
private OnClickListener mListener;
public ClickSpan(OnClickListener listener) {
mListener = listener;
}
#Override
public void onClick(View widget) {
if (mListener != null) mListener.onClick();
}
public interface OnClickListener {
void onClick();
}
}
Helper function:
public static void clickify(TextView view, final String clickableText,
final ClickSpan.OnClickListener listener) {
CharSequence text = view.getText();
String string = text.toString();
ClickSpan span = new ClickSpan(listener);
int start = string.indexOf(clickableText);
int end = start + clickableText.length();
if (start == -1) return;
if (text instanceof Spannable) {
((Spannable)text).setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
} else {
SpannableString s = SpannableString.valueOf(text);
s.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
view.setText(s);
}
MovementMethod m = view.getMovementMethod();
if ((m == null) || !(m instanceof LinkMovementMethod)) {
view.setMovementMethod(LinkMovementMethod.getInstance());
}
}
Usage:
clickify(textView, clickText,new ClickSpan.OnClickListener()
{
#Override
public void onClick() {
// do something
}
});
if there are multiple links in the text view . For example textview has "https://" and "tel no" we can customise the LinkMovement method and handle clicks for words based on a pattern. Attached is the customised Link Movement Method.
public class CustomLinkMovementMethod extends LinkMovementMethod
{
private static Context movementContext;
private static CustomLinkMovementMethod linkMovementMethod = new CustomLinkMovementMethod();
public boolean onTouchEvent(android.widget.TextView widget, android.text.Spannable buffer, android.view.MotionEvent event)
{
int action = event.getAction();
if (action == MotionEvent.ACTION_UP)
{
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
URLSpan[] link = buffer.getSpans(off, off, URLSpan.class);
if (link.length != 0)
{
String url = link[0].getURL();
if (url.startsWith("https"))
{
Log.d("Link", url);
Toast.makeText(movementContext, "Link was clicked", Toast.LENGTH_LONG).show();
} else if (url.startsWith("tel"))
{
Log.d("Link", url);
Toast.makeText(movementContext, "Tel was clicked", Toast.LENGTH_LONG).show();
} else if (url.startsWith("mailto"))
{
Log.d("Link", url);
Toast.makeText(movementContext, "Mail link was clicked", Toast.LENGTH_LONG).show();
}
return true;
}
}
return super.onTouchEvent(widget, buffer, event);
}
public static android.text.method.MovementMethod getInstance(Context c)
{
movementContext = c;
return linkMovementMethod;
}
This should be called from the textview in the following manner:
textViewObject.setMovementMethod(CustomLinkMovementMethod.getInstance(context));
Here is a more generic solution based on #Arun answer
public abstract class TextViewLinkHandler extends LinkMovementMethod {
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
if (event.getAction() != MotionEvent.ACTION_UP)
return super.onTouchEvent(widget, buffer, event);
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
URLSpan[] link = buffer.getSpans(off, off, URLSpan.class);
if (link.length != 0) {
onLinkClick(link[0].getURL());
}
return true;
}
abstract public void onLinkClick(String url);
}
To use it just implement onLinkClick of TextViewLinkHandler class. For instance:
textView.setMovementMethod(new TextViewLinkHandler() {
#Override
public void onLinkClick(String url) {
Toast.makeText(textView.getContext(), url, Toast.LENGTH_SHORT).show();
}
});
its very simple add this line to your code:
tv.setMovementMethod(LinkMovementMethod.getInstance());
Solution
I have implemented a small class with the help of which you can handle long clicks on TextView itself and Taps on the links in the TextView.
Layout
TextView android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:autoLink="all"/>
TextViewClickMovement.java
import android.content.Context;
import android.text.Layout;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.style.ClickableSpan;
import android.util.Patterns;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.widget.TextView;
public class TextViewClickMovement extends LinkMovementMethod {
private final String TAG = TextViewClickMovement.class.getSimpleName();
private final OnTextViewClickMovementListener mListener;
private final GestureDetector mGestureDetector;
private TextView mWidget;
private Spannable mBuffer;
public enum LinkType {
/** Indicates that phone link was clicked */
PHONE,
/** Identifies that URL was clicked */
WEB_URL,
/** Identifies that Email Address was clicked */
EMAIL_ADDRESS,
/** Indicates that none of above mentioned were clicked */
NONE
}
/**
* Interface used to handle Long clicks on the {#link TextView} and taps
* on the phone, web, mail links inside of {#link TextView}.
*/
public interface OnTextViewClickMovementListener {
/**
* This method will be invoked when user press and hold
* finger on the {#link TextView}
*
* #param linkText Text which contains link on which user presses.
* #param linkType Type of the link can be one of {#link LinkType} enumeration
*/
void onLinkClicked(final String linkText, final LinkType linkType);
/**
*
* #param text Whole text of {#link TextView}
*/
void onLongClick(final String text);
}
public TextViewClickMovement(final OnTextViewClickMovementListener listener, final Context context) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new SimpleOnGestureListener());
}
#Override
public boolean onTouchEvent(final TextView widget, final Spannable buffer, final MotionEvent event) {
mWidget = widget;
mBuffer = buffer;
mGestureDetector.onTouchEvent(event);
return false;
}
/**
* Detects various gestures and events.
* Notify users when a particular motion event has occurred.
*/
class SimpleOnGestureListener extends GestureDetector.SimpleOnGestureListener {
#Override
public boolean onDown(MotionEvent event) {
// Notified when a tap occurs.
return true;
}
#Override
public void onLongPress(MotionEvent e) {
// Notified when a long press occurs.
final String text = mBuffer.toString();
if (mListener != null) {
Log.d(TAG, "----> Long Click Occurs on TextView with ID: " + mWidget.getId() + "\n" +
"Text: " + text + "\n<----");
mListener.onLongClick(text);
}
}
#Override
public boolean onSingleTapConfirmed(MotionEvent event) {
// Notified when tap occurs.
final String linkText = getLinkText(mWidget, mBuffer, event);
LinkType linkType = LinkType.NONE;
if (Patterns.PHONE.matcher(linkText).matches()) {
linkType = LinkType.PHONE;
}
else if (Patterns.WEB_URL.matcher(linkText).matches()) {
linkType = LinkType.WEB_URL;
}
else if (Patterns.EMAIL_ADDRESS.matcher(linkText).matches()) {
linkType = LinkType.EMAIL_ADDRESS;
}
if (mListener != null) {
Log.d(TAG, "----> Tap Occurs on TextView with ID: " + mWidget.getId() + "\n" +
"Link Text: " + linkText + "\n" +
"Link Type: " + linkType + "\n<----");
mListener.onLinkClicked(linkText, linkType);
}
return false;
}
private String getLinkText(final TextView widget, final Spannable buffer, final MotionEvent event) {
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);
if (link.length != 0) {
return buffer.subSequence(buffer.getSpanStart(link[0]),
buffer.getSpanEnd(link[0])).toString();
}
return "";
}
}
}
Usage
TextView tv = (TextView) v.findViewById(R.id.textview);
tv.setText(Html.fromHtml("<a href='test'>test</a>"));
textView.setMovementMethod(new TextViewClickMovement(this, context));
Links
Hope this helps! You can find code here.
for who looks for more options here is a one
// Set text within a `TextView`
TextView textView = (TextView) findViewById(R.id.textView);
textView.setText("Hey #sarah, where did #jim go? #lost");
// Style clickable spans based on pattern
new PatternEditableBuilder().
addPattern(Pattern.compile("\\#(\\w+)"), Color.BLUE,
new PatternEditableBuilder.SpannableClickedListener() {
#Override
public void onSpanClicked(String text) {
Toast.makeText(MainActivity.this, "Clicked username: " + text,
Toast.LENGTH_SHORT).show();
}
}).into(textView);
RESOURCE : CodePath
Just to share an alternative solution using a library I created. With Textoo, this can be achieved like:
TextView locNotFound = Textoo
.config((TextView) findViewById(R.id.view_location_disabled))
.addLinksHandler(new LinksHandler() {
#Override
public boolean onClick(View view, String url) {
if ("internal://settings/location".equals(url)) {
Intent locSettings = new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(locSettings);
return true;
} else {
return false;
}
}
})
.apply();
Or with dynamic HTML source:
String htmlSource = "Links: <a href='http://www.google.com'>Google</a>";
Spanned linksLoggingText = Textoo
.config(htmlSource)
.parseHtml()
.addLinksHandler(new LinksHandler() {
#Override
public boolean onClick(View view, String url) {
Log.i("MyActivity", "Linking to google...");
return false; // event not handled. Continue default processing i.e. link to google
}
})
.apply();
textView.setText(linksLoggingText);
public static void setTextViewFromHtmlWithLinkClickable(TextView textView, String text) {
Spanned result;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
result = Html.fromHtml(text, Html.FROM_HTML_MODE_LEGACY);
} else {
result = Html.fromHtml(text);
}
textView.setText(result);
textView.setMovementMethod(LinkMovementMethod.getInstance());
}
I changed the TextView's color to blue by using for example:
android:textColor="#3399FF"
in the xml file. How to make it underlined is explained here.
Then use its onClick property to specify a method (I'm guessing you could call setOnClickListener(this) as another way), e.g.:
myTextView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
doSomething();
}
});
In that method, I can do whatever I want as normal, such as launch an intent. Note that you still have to do the normal myTextView.setMovementMethod(LinkMovementMethod.getInstance()); thing, like in your acitivity's onCreate() method.
This answer extends Jonathan S's excellent solution:
You can use the following method to extract links from the text:
private static ArrayList<String> getLinksFromText(String text) {
ArrayList links = new ArrayList();
String regex = "\(?\b((http|https)://www[.])[-A-Za-z0-9+&##/%?=~_()|!:,.;]*[-A-Za-z0-9+&##/%=~_()|]";
Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(text);
while (m.find()) {
String urlStr = m.group();
if (urlStr.startsWith("(") && urlStr.endsWith(")")) {
urlStr = urlStr.substring(1, urlStr.length() - 1);
}
links.add(urlStr);
}
return links;
}
This can be used to remove one of the parameters in the clickify() method:
public static void clickify(TextView view,
final ClickSpan.OnClickListener listener) {
CharSequence text = view.getText();
String string = text.toString();
ArrayList<String> linksInText = getLinksFromText(string);
if (linksInText.isEmpty()){
return;
}
String clickableText = linksInText.get(0);
ClickSpan span = new ClickSpan(listener,clickableText);
int start = string.indexOf(clickableText);
int end = start + clickableText.length();
if (start == -1) return;
if (text instanceof Spannable) {
((Spannable) text).setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
} else {
SpannableString s = SpannableString.valueOf(text);
s.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
view.setText(s);
}
MovementMethod m = view.getMovementMethod();
if ((m == null) || !(m instanceof LinkMovementMethod)) {
view.setMovementMethod(LinkMovementMethod.getInstance());
}
}
A few changes to the ClickSpan:
public static class ClickSpan extends ClickableSpan {
private String mClickableText;
private OnClickListener mListener;
public ClickSpan(OnClickListener listener, String clickableText) {
mListener = listener;
mClickableText = clickableText;
}
#Override
public void onClick(View widget) {
if (mListener != null) mListener.onClick(mClickableText);
}
public interface OnClickListener {
void onClick(String clickableText);
}
}
Now you can simply set the text on the TextView and then add a listener to it:
TextViewUtils.clickify(textWithLink,new TextUtils.ClickSpan.OnClickListener(){
#Override
public void onClick(String clickableText){
//action...
}
});
Example: Suppose you have set some text in textview and you want to provide a link on a particular text expression:
"Click on #facebook will take you to facebook.com"
In layout xml:
<TextView
android:id="#+id/testtext"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
In Activity:
String text = "Click on #facebook will take you to facebook.com";
tv.setText(text);
Pattern tagMatcher = Pattern.compile("[#]+[A-Za-z0-9-_]+\\b");
String newActivityURL = "content://ankit.testactivity/";
Linkify.addLinks(tv, tagMatcher, newActivityURL);
Also create one tag provider as:
public class TagProvider extends ContentProvider {
#Override
public int delete(Uri arg0, String arg1, String[] arg2) {
// TODO Auto-generated method stub
return 0;
}
#Override
public String getType(Uri arg0) {
return "vnd.android.cursor.item/vnd.cc.tag";
}
#Override
public Uri insert(Uri arg0, ContentValues arg1) {
// TODO Auto-generated method stub
return null;
}
#Override
public boolean onCreate() {
// TODO Auto-generated method stub
return false;
}
#Override
public Cursor query(Uri arg0, String[] arg1, String arg2, String[] arg3,
String arg4) {
// TODO Auto-generated method stub
return null;
}
#Override
public int update(Uri arg0, ContentValues arg1, String arg2, String[] arg3) {
// TODO Auto-generated method stub
return 0;
}
}
In manifest file make as entry for provider and test activity as:
<provider
android:name="ankit.TagProvider"
android:authorities="ankit.testactivity" />
<activity android:name=".TestActivity"
android:label = "#string/app_name">
<intent-filter >
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="vnd.android.cursor.item/vnd.cc.tag" />
</intent-filter>
</activity>
Now when you click on #facebook, it will invoke testactivtiy. And in test activity you can get the data as:
Uri uri = getIntent().getData();
Kotlin version to #user5699130's answer:
Layout
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:autoLink="all"/>
InterceptedLinkMovementMethod
import android.text.Spannable
import android.text.method.LinkMovementMethod
import android.text.style.ClickableSpan
import android.view.GestureDetector
import android.view.MotionEvent
import android.widget.TextView
/**
* Usage:
* fooTextView.movementMethod = InterceptedLinkMovementMethod(this)
* Where 'this' implements [TextViewLinkClickListener]
*/
class InterceptedLinkMovementMethod(
private val listener: TextViewLinkClickListener,
) : LinkMovementMethod() {
private lateinit var textView: TextView
private lateinit var spannable: Spannable
private val gestureDetector: GestureDetector by lazy {
GestureDetector(textView.context, SimpleTapListener())
}
override fun onTouchEvent(widget: TextView, buffer: Spannable, event: MotionEvent): Boolean {
textView = widget
spannable = buffer
gestureDetector.onTouchEvent(event)
return false
}
inner class SimpleTapListener : GestureDetector.SimpleOnGestureListener() {
override fun onDown(event: MotionEvent): Boolean = true
override fun onSingleTapConfirmed(event: MotionEvent): Boolean {
val linkText = getLinkText(textView, spannable, event)
val linkType = LinkTypes.getLinkTypeFromText(linkText)
if (linkType != LinkTypes.NONE) {
listener.onLinkClicked(linkText, linkType)
}
return false
}
override fun onLongPress(e: MotionEvent) {
val linkText = getLinkText(textView, spannable, e)
val linkType = LinkTypes.getLinkTypeFromText(linkText)
if (linkType != LinkTypes.NONE) {
listener.onLinkLongClicked(linkText, linkType)
}
}
private fun getLinkText(widget: TextView, buffer: Spannable, event: MotionEvent): String {
var x = event.x.toInt()
var y = event.y.toInt()
x -= widget.totalPaddingLeft
y -= widget.totalPaddingTop
x += widget.scrollX
y += widget.scrollY
val layout = widget.layout
val line = layout.getLineForVertical(y)
val off = layout.getOffsetForHorizontal(line, x.toFloat())
val link = buffer.getSpans(off, off, ClickableSpan::class.java)
if (link.isEmpty()) return ""
return buffer.subSequence(buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]))
.toString()
}
}
}
LinkTypes
import android.util.Patterns
enum class LinkTypes {
PHONE,
WEB_URL,
EMAIL_ADDRESS,
NONE;
companion object {
fun getLinkTypeFromText(text: String): LinkTypes =
when {
Patterns.PHONE.matcher(text).matches() -> PHONE
Patterns.WEB_URL.matcher(text).matches() -> WEB_URL
Patterns.EMAIL_ADDRESS.matcher(text).matches() -> EMAIL_ADDRESS
else -> NONE
}
}
}
TextViewLinkClickListener
interface TextViewLinkClickListener {
fun onLinkClicked(linkText: String, linkTypes: LinkTypes)
fun onLinkLongClicked(linkText: String, linkTypes: LinkTypes)
}
I have a TextView with maximun 3 lines and a "Show more" button below it. The logic is that if the text in the TextView can fit inside it, the "Show more" button is hidden; otherwise if the text cannot fit in 3 lines, the "Show more" is shown.
My way (which is not working) is that: detect if the TextView is ellipsized by using textView.getLayout().getEllipsisCount(maxNumberOfline) then hide or show the "Show more" button. But the call textView.getLayout() return null when the layout is not finish yet. I tried to put textView.getLayout().getEllipsisCount(maxNumberOfline) in onStart() and onResume() but no luck.
Does anyone have another way to do this?
Try this way,hope this will help you to solve your problem.
#Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textview = (TextView) findViewById(R.id.textview);
textview.setText("demotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotextdemotext");
TextViewResizable(textview,3,"See More");
}
public void TextViewResizable(final TextView tv,final int maxLine, final String expandText) {
if (tv.getTag() == null) {
tv.setTag(tv.getText());
}
ViewTreeObserver vto = tv.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#SuppressWarnings("deprecation")
#Override
public void onGlobalLayout() {
ViewTreeObserver obs = tv.getViewTreeObserver();
obs.removeGlobalOnLayoutListener(this);
if (maxLine <= 0) {
int lineEndIndex = tv.getLayout().getLineEnd(0);
String text = tv.getText().subSequence(0,lineEndIndex - expandText.length() + 1)+ " " + expandText;
tv.setText(text);
tv.setMovementMethod(LinkMovementMethod.getInstance());
tv.setText(addClickablePartTextViewResizable(Html.fromHtml(tv.getText().toString()), tv, expandText), TextView.BufferType.SPANNABLE);
} else if (tv.getLineCount() >= maxLine) {
int lineEndIndex = tv.getLayout().getLineEnd(maxLine - 1);
String text = tv.getText().subSequence(0,lineEndIndex - expandText.length() + 1)+ " " + expandText;
tv.setText(text);
tv.setMovementMethod(LinkMovementMethod.getInstance());
tv.setText(addClickablePartTextViewResizable(Html.fromHtml(tv.getText().toString()), tv, expandText), TextView.BufferType.SPANNABLE);
}
}
});
}
private SpannableStringBuilder addClickablePartTextViewResizable(final Spanned strSpanned, final TextView tv,final String expandText) {
String str = strSpanned.toString();
SpannableStringBuilder ssb = new SpannableStringBuilder(strSpanned);
if (str.contains(expandText)) {
ssb.setSpan(new Spannable(Color.BLUE, true) {
#Override
public void onClick(View widget) {
tv.setLayoutParams(tv.getLayoutParams());
tv.setText(tv.getTag().toString(),TextView.BufferType.SPANNABLE);
tv.invalidate();
}
}, str.indexOf(expandText), str.indexOf(expandText)+ expandText.length(), 0);
}
return ssb;
}
class Spannable extends ClickableSpan {
private int color = -1;
private float fontSize = -1;
private boolean isUnderline = true;
/**
* Constructor
*/
public Spannable() {
}
/**
* Constructor
*/
public Spannable(int color) {
this.color = color;
}
/**
* Constructor
*/
public Spannable(float fontSize) {
this.fontSize = fontSize;
}
/**
* Constructor
*/
public Spannable(boolean isUnderline) {
this.isUnderline = isUnderline;
}
/**
* Constructor
*/
public Spannable(int color, boolean isUnderline) {
this.isUnderline = isUnderline;
this.color = color;
}
/**
* Constructor
*/
public Spannable(int color, float fontSize) {
this.color = color;
this.fontSize = fontSize;
}
/**
* Overrides methods
*/
#Override
public void updateDrawState(TextPaint ds) {
if (color != -1) {
ds.setColor(color);
}
if (fontSize > 0) {
ds.setTextSize(fontSize);
}
ds.setUnderlineText(isUnderline);
}
#Override
public void onClick(View widget) {
}
}
I also had this kind of problem, the following code actually fixed it:
mTextView.getViewTreeObserver().addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
showHideMoreButton(mTextView);
}
});
public void showHideMoreButton(TextView mTextView) {
Layout layout = mTextView.getLayout();
if (layout != null) {
int lines = layout.getLineCount();
if (lines > 0) {
int ellipsisCount = layout.getEllipsisCount(lines - 1);
if (ellipsisCount > 0) {
mShowMoreButton.setVisibility(View.VISIBLE);
}
}
}
}
until I noticed that it's not working in OS version 2.3.5. Even though the mTextView.getLineCount() is returning the correct number of lines, the layout.getEllipsisCount(lines - 1) never returns number which is greater than 0. What happened next is that the "Show More" button never appears although the TextView has already been truncated at the end. Then I realized that the implementation can be changed to the following. It's working now.
public void showHideMoreButton(TextView mTextView) {
int lines = mTextView.getLineCount();
if (lines > 2) {
mShowMoreButton.setVisibility(View.VISIBLE);
mTextView.setSingleLine(false);
mTextView.setEllipsize(TextUtils.TruncateAt.END);
mTextView.setLines(2); //no. of lines you want your textview to display
}
}
I'm currently rendering HTML input in a TextView like so:
tv.setText(Html.fromHtml("<a href='test'>test</a>"));
The HTML being displayed is provided to me via an external resource, so I cannot change things around as I will, but I can, of course, do some regex tampering with the HTML, to change the href value, say, to something else.
What I want is to be able to handle a link click directly from within the app, rather than having the link open a browser window. Is this achievable at all? I'm guessing it would be possible to set the protocol of the href-value to something like "myApp://", and then register something that would let my app handle that protocol. If this is indeed the best way, I'd like to know how that is done, but I'm hoping there's an easier way to just say, "when a link is clicked in this textview, I want to raise an event that receives the href value of the link as an input parameter"
Coming at this almost a year later, there's a different manner in which I solved my particular problem. Since I wanted the link to be handled by my own app, there is a solution that is a bit simpler.
Besides the default intent filter, I simply let my target activity listen to ACTION_VIEW intents, and specifically, those with the scheme com.package.name
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.VIEW" />
<data android:scheme="com.package.name" />
</intent-filter>
This means that links starting with com.package.name:// will be handled by my activity.
So all I have to do is construct a URL that contains the information I want to convey:
com.package.name://action-to-perform/id-that-might-be-needed/
In my target activity, I can retrieve this address:
Uri data = getIntent().getData();
In my example, I could simply check data for null values, because when ever it isn't null, I'll know it was invoked by means of such a link. From there, I extract the instructions I need from the url to be able to display the appropriate data.
Another way, borrows a bit from Linkify but allows you to customize your handling.
Custom Span Class:
public class ClickSpan extends ClickableSpan {
private OnClickListener mListener;
public ClickSpan(OnClickListener listener) {
mListener = listener;
}
#Override
public void onClick(View widget) {
if (mListener != null) mListener.onClick();
}
public interface OnClickListener {
void onClick();
}
}
Helper function:
public static void clickify(TextView view, final String clickableText,
final ClickSpan.OnClickListener listener) {
CharSequence text = view.getText();
String string = text.toString();
ClickSpan span = new ClickSpan(listener);
int start = string.indexOf(clickableText);
int end = start + clickableText.length();
if (start == -1) return;
if (text instanceof Spannable) {
((Spannable)text).setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
} else {
SpannableString s = SpannableString.valueOf(text);
s.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
view.setText(s);
}
MovementMethod m = view.getMovementMethod();
if ((m == null) || !(m instanceof LinkMovementMethod)) {
view.setMovementMethod(LinkMovementMethod.getInstance());
}
}
Usage:
clickify(textView, clickText,new ClickSpan.OnClickListener()
{
#Override
public void onClick() {
// do something
}
});
if there are multiple links in the text view . For example textview has "https://" and "tel no" we can customise the LinkMovement method and handle clicks for words based on a pattern. Attached is the customised Link Movement Method.
public class CustomLinkMovementMethod extends LinkMovementMethod
{
private static Context movementContext;
private static CustomLinkMovementMethod linkMovementMethod = new CustomLinkMovementMethod();
public boolean onTouchEvent(android.widget.TextView widget, android.text.Spannable buffer, android.view.MotionEvent event)
{
int action = event.getAction();
if (action == MotionEvent.ACTION_UP)
{
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
URLSpan[] link = buffer.getSpans(off, off, URLSpan.class);
if (link.length != 0)
{
String url = link[0].getURL();
if (url.startsWith("https"))
{
Log.d("Link", url);
Toast.makeText(movementContext, "Link was clicked", Toast.LENGTH_LONG).show();
} else if (url.startsWith("tel"))
{
Log.d("Link", url);
Toast.makeText(movementContext, "Tel was clicked", Toast.LENGTH_LONG).show();
} else if (url.startsWith("mailto"))
{
Log.d("Link", url);
Toast.makeText(movementContext, "Mail link was clicked", Toast.LENGTH_LONG).show();
}
return true;
}
}
return super.onTouchEvent(widget, buffer, event);
}
public static android.text.method.MovementMethod getInstance(Context c)
{
movementContext = c;
return linkMovementMethod;
}
This should be called from the textview in the following manner:
textViewObject.setMovementMethod(CustomLinkMovementMethod.getInstance(context));
Here is a more generic solution based on #Arun answer
public abstract class TextViewLinkHandler extends LinkMovementMethod {
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
if (event.getAction() != MotionEvent.ACTION_UP)
return super.onTouchEvent(widget, buffer, event);
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
URLSpan[] link = buffer.getSpans(off, off, URLSpan.class);
if (link.length != 0) {
onLinkClick(link[0].getURL());
}
return true;
}
abstract public void onLinkClick(String url);
}
To use it just implement onLinkClick of TextViewLinkHandler class. For instance:
textView.setMovementMethod(new TextViewLinkHandler() {
#Override
public void onLinkClick(String url) {
Toast.makeText(textView.getContext(), url, Toast.LENGTH_SHORT).show();
}
});
its very simple add this line to your code:
tv.setMovementMethod(LinkMovementMethod.getInstance());
Solution
I have implemented a small class with the help of which you can handle long clicks on TextView itself and Taps on the links in the TextView.
Layout
TextView android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:autoLink="all"/>
TextViewClickMovement.java
import android.content.Context;
import android.text.Layout;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.style.ClickableSpan;
import android.util.Patterns;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.widget.TextView;
public class TextViewClickMovement extends LinkMovementMethod {
private final String TAG = TextViewClickMovement.class.getSimpleName();
private final OnTextViewClickMovementListener mListener;
private final GestureDetector mGestureDetector;
private TextView mWidget;
private Spannable mBuffer;
public enum LinkType {
/** Indicates that phone link was clicked */
PHONE,
/** Identifies that URL was clicked */
WEB_URL,
/** Identifies that Email Address was clicked */
EMAIL_ADDRESS,
/** Indicates that none of above mentioned were clicked */
NONE
}
/**
* Interface used to handle Long clicks on the {#link TextView} and taps
* on the phone, web, mail links inside of {#link TextView}.
*/
public interface OnTextViewClickMovementListener {
/**
* This method will be invoked when user press and hold
* finger on the {#link TextView}
*
* #param linkText Text which contains link on which user presses.
* #param linkType Type of the link can be one of {#link LinkType} enumeration
*/
void onLinkClicked(final String linkText, final LinkType linkType);
/**
*
* #param text Whole text of {#link TextView}
*/
void onLongClick(final String text);
}
public TextViewClickMovement(final OnTextViewClickMovementListener listener, final Context context) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new SimpleOnGestureListener());
}
#Override
public boolean onTouchEvent(final TextView widget, final Spannable buffer, final MotionEvent event) {
mWidget = widget;
mBuffer = buffer;
mGestureDetector.onTouchEvent(event);
return false;
}
/**
* Detects various gestures and events.
* Notify users when a particular motion event has occurred.
*/
class SimpleOnGestureListener extends GestureDetector.SimpleOnGestureListener {
#Override
public boolean onDown(MotionEvent event) {
// Notified when a tap occurs.
return true;
}
#Override
public void onLongPress(MotionEvent e) {
// Notified when a long press occurs.
final String text = mBuffer.toString();
if (mListener != null) {
Log.d(TAG, "----> Long Click Occurs on TextView with ID: " + mWidget.getId() + "\n" +
"Text: " + text + "\n<----");
mListener.onLongClick(text);
}
}
#Override
public boolean onSingleTapConfirmed(MotionEvent event) {
// Notified when tap occurs.
final String linkText = getLinkText(mWidget, mBuffer, event);
LinkType linkType = LinkType.NONE;
if (Patterns.PHONE.matcher(linkText).matches()) {
linkType = LinkType.PHONE;
}
else if (Patterns.WEB_URL.matcher(linkText).matches()) {
linkType = LinkType.WEB_URL;
}
else if (Patterns.EMAIL_ADDRESS.matcher(linkText).matches()) {
linkType = LinkType.EMAIL_ADDRESS;
}
if (mListener != null) {
Log.d(TAG, "----> Tap Occurs on TextView with ID: " + mWidget.getId() + "\n" +
"Link Text: " + linkText + "\n" +
"Link Type: " + linkType + "\n<----");
mListener.onLinkClicked(linkText, linkType);
}
return false;
}
private String getLinkText(final TextView widget, final Spannable buffer, final MotionEvent event) {
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);
if (link.length != 0) {
return buffer.subSequence(buffer.getSpanStart(link[0]),
buffer.getSpanEnd(link[0])).toString();
}
return "";
}
}
}
Usage
TextView tv = (TextView) v.findViewById(R.id.textview);
tv.setText(Html.fromHtml("<a href='test'>test</a>"));
textView.setMovementMethod(new TextViewClickMovement(this, context));
Links
Hope this helps! You can find code here.
for who looks for more options here is a one
// Set text within a `TextView`
TextView textView = (TextView) findViewById(R.id.textView);
textView.setText("Hey #sarah, where did #jim go? #lost");
// Style clickable spans based on pattern
new PatternEditableBuilder().
addPattern(Pattern.compile("\\#(\\w+)"), Color.BLUE,
new PatternEditableBuilder.SpannableClickedListener() {
#Override
public void onSpanClicked(String text) {
Toast.makeText(MainActivity.this, "Clicked username: " + text,
Toast.LENGTH_SHORT).show();
}
}).into(textView);
RESOURCE : CodePath
Just to share an alternative solution using a library I created. With Textoo, this can be achieved like:
TextView locNotFound = Textoo
.config((TextView) findViewById(R.id.view_location_disabled))
.addLinksHandler(new LinksHandler() {
#Override
public boolean onClick(View view, String url) {
if ("internal://settings/location".equals(url)) {
Intent locSettings = new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(locSettings);
return true;
} else {
return false;
}
}
})
.apply();
Or with dynamic HTML source:
String htmlSource = "Links: <a href='http://www.google.com'>Google</a>";
Spanned linksLoggingText = Textoo
.config(htmlSource)
.parseHtml()
.addLinksHandler(new LinksHandler() {
#Override
public boolean onClick(View view, String url) {
Log.i("MyActivity", "Linking to google...");
return false; // event not handled. Continue default processing i.e. link to google
}
})
.apply();
textView.setText(linksLoggingText);
public static void setTextViewFromHtmlWithLinkClickable(TextView textView, String text) {
Spanned result;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
result = Html.fromHtml(text, Html.FROM_HTML_MODE_LEGACY);
} else {
result = Html.fromHtml(text);
}
textView.setText(result);
textView.setMovementMethod(LinkMovementMethod.getInstance());
}
I changed the TextView's color to blue by using for example:
android:textColor="#3399FF"
in the xml file. How to make it underlined is explained here.
Then use its onClick property to specify a method (I'm guessing you could call setOnClickListener(this) as another way), e.g.:
myTextView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
doSomething();
}
});
In that method, I can do whatever I want as normal, such as launch an intent. Note that you still have to do the normal myTextView.setMovementMethod(LinkMovementMethod.getInstance()); thing, like in your acitivity's onCreate() method.
This answer extends Jonathan S's excellent solution:
You can use the following method to extract links from the text:
private static ArrayList<String> getLinksFromText(String text) {
ArrayList links = new ArrayList();
String regex = "\(?\b((http|https)://www[.])[-A-Za-z0-9+&##/%?=~_()|!:,.;]*[-A-Za-z0-9+&##/%=~_()|]";
Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(text);
while (m.find()) {
String urlStr = m.group();
if (urlStr.startsWith("(") && urlStr.endsWith(")")) {
urlStr = urlStr.substring(1, urlStr.length() - 1);
}
links.add(urlStr);
}
return links;
}
This can be used to remove one of the parameters in the clickify() method:
public static void clickify(TextView view,
final ClickSpan.OnClickListener listener) {
CharSequence text = view.getText();
String string = text.toString();
ArrayList<String> linksInText = getLinksFromText(string);
if (linksInText.isEmpty()){
return;
}
String clickableText = linksInText.get(0);
ClickSpan span = new ClickSpan(listener,clickableText);
int start = string.indexOf(clickableText);
int end = start + clickableText.length();
if (start == -1) return;
if (text instanceof Spannable) {
((Spannable) text).setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
} else {
SpannableString s = SpannableString.valueOf(text);
s.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
view.setText(s);
}
MovementMethod m = view.getMovementMethod();
if ((m == null) || !(m instanceof LinkMovementMethod)) {
view.setMovementMethod(LinkMovementMethod.getInstance());
}
}
A few changes to the ClickSpan:
public static class ClickSpan extends ClickableSpan {
private String mClickableText;
private OnClickListener mListener;
public ClickSpan(OnClickListener listener, String clickableText) {
mListener = listener;
mClickableText = clickableText;
}
#Override
public void onClick(View widget) {
if (mListener != null) mListener.onClick(mClickableText);
}
public interface OnClickListener {
void onClick(String clickableText);
}
}
Now you can simply set the text on the TextView and then add a listener to it:
TextViewUtils.clickify(textWithLink,new TextUtils.ClickSpan.OnClickListener(){
#Override
public void onClick(String clickableText){
//action...
}
});
Example: Suppose you have set some text in textview and you want to provide a link on a particular text expression:
"Click on #facebook will take you to facebook.com"
In layout xml:
<TextView
android:id="#+id/testtext"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
In Activity:
String text = "Click on #facebook will take you to facebook.com";
tv.setText(text);
Pattern tagMatcher = Pattern.compile("[#]+[A-Za-z0-9-_]+\\b");
String newActivityURL = "content://ankit.testactivity/";
Linkify.addLinks(tv, tagMatcher, newActivityURL);
Also create one tag provider as:
public class TagProvider extends ContentProvider {
#Override
public int delete(Uri arg0, String arg1, String[] arg2) {
// TODO Auto-generated method stub
return 0;
}
#Override
public String getType(Uri arg0) {
return "vnd.android.cursor.item/vnd.cc.tag";
}
#Override
public Uri insert(Uri arg0, ContentValues arg1) {
// TODO Auto-generated method stub
return null;
}
#Override
public boolean onCreate() {
// TODO Auto-generated method stub
return false;
}
#Override
public Cursor query(Uri arg0, String[] arg1, String arg2, String[] arg3,
String arg4) {
// TODO Auto-generated method stub
return null;
}
#Override
public int update(Uri arg0, ContentValues arg1, String arg2, String[] arg3) {
// TODO Auto-generated method stub
return 0;
}
}
In manifest file make as entry for provider and test activity as:
<provider
android:name="ankit.TagProvider"
android:authorities="ankit.testactivity" />
<activity android:name=".TestActivity"
android:label = "#string/app_name">
<intent-filter >
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="vnd.android.cursor.item/vnd.cc.tag" />
</intent-filter>
</activity>
Now when you click on #facebook, it will invoke testactivtiy. And in test activity you can get the data as:
Uri uri = getIntent().getData();
Kotlin version to #user5699130's answer:
Layout
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:autoLink="all"/>
InterceptedLinkMovementMethod
import android.text.Spannable
import android.text.method.LinkMovementMethod
import android.text.style.ClickableSpan
import android.view.GestureDetector
import android.view.MotionEvent
import android.widget.TextView
/**
* Usage:
* fooTextView.movementMethod = InterceptedLinkMovementMethod(this)
* Where 'this' implements [TextViewLinkClickListener]
*/
class InterceptedLinkMovementMethod(
private val listener: TextViewLinkClickListener,
) : LinkMovementMethod() {
private lateinit var textView: TextView
private lateinit var spannable: Spannable
private val gestureDetector: GestureDetector by lazy {
GestureDetector(textView.context, SimpleTapListener())
}
override fun onTouchEvent(widget: TextView, buffer: Spannable, event: MotionEvent): Boolean {
textView = widget
spannable = buffer
gestureDetector.onTouchEvent(event)
return false
}
inner class SimpleTapListener : GestureDetector.SimpleOnGestureListener() {
override fun onDown(event: MotionEvent): Boolean = true
override fun onSingleTapConfirmed(event: MotionEvent): Boolean {
val linkText = getLinkText(textView, spannable, event)
val linkType = LinkTypes.getLinkTypeFromText(linkText)
if (linkType != LinkTypes.NONE) {
listener.onLinkClicked(linkText, linkType)
}
return false
}
override fun onLongPress(e: MotionEvent) {
val linkText = getLinkText(textView, spannable, e)
val linkType = LinkTypes.getLinkTypeFromText(linkText)
if (linkType != LinkTypes.NONE) {
listener.onLinkLongClicked(linkText, linkType)
}
}
private fun getLinkText(widget: TextView, buffer: Spannable, event: MotionEvent): String {
var x = event.x.toInt()
var y = event.y.toInt()
x -= widget.totalPaddingLeft
y -= widget.totalPaddingTop
x += widget.scrollX
y += widget.scrollY
val layout = widget.layout
val line = layout.getLineForVertical(y)
val off = layout.getOffsetForHorizontal(line, x.toFloat())
val link = buffer.getSpans(off, off, ClickableSpan::class.java)
if (link.isEmpty()) return ""
return buffer.subSequence(buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]))
.toString()
}
}
}
LinkTypes
import android.util.Patterns
enum class LinkTypes {
PHONE,
WEB_URL,
EMAIL_ADDRESS,
NONE;
companion object {
fun getLinkTypeFromText(text: String): LinkTypes =
when {
Patterns.PHONE.matcher(text).matches() -> PHONE
Patterns.WEB_URL.matcher(text).matches() -> WEB_URL
Patterns.EMAIL_ADDRESS.matcher(text).matches() -> EMAIL_ADDRESS
else -> NONE
}
}
}
TextViewLinkClickListener
interface TextViewLinkClickListener {
fun onLinkClicked(linkText: String, linkTypes: LinkTypes)
fun onLinkLongClicked(linkText: String, linkTypes: LinkTypes)
}