I want gradually change button color, after click on it. I mean, button must have, for example next set of colors: by default - dark dark blue, then dark blue, then blue, then light blue, and in the end - the lightest blue. This is only example, really I want to change button color in cycle, like in the next code. But, I can't understand, why it doesn't show intermediate colors. It shows only first color, and the last one.
How to improve this?
public class ActivityExample extends Activity {
private changeColorBtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_animations);
changeColorBtn = (Button) findViewById(R.id.btn_change_color);
changeColorBtn.setBackgroundColor(Color.BLACK);
changeColorBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
changeButtonColor(v);
}
});
}
private void changeButtonColor(View v) {
// How many intermediate color will be, and delay in millisecond between them
int count = 20, delay = 100;
for (int i = 0; i < count; i++) {
try {
int color = ((ColorDrawable) changeColorBtn.getBackground())
.getColor();
int blue = Color.blue(color), red = Color.red(color), green = Color.green(color);
changeColorBtn.setBackgroundColor(Color.rgb(red+10, green+5, blue+3));
Thread.sleep(delay);
} catch (InterruptedException inE) {
}
}
}
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
I solved this problem using TransitionDrawable. You can follow next step:
Create an xml file in the drawable folder, and write there something like:
`
<?xml version="1.0" encoding="UTF-8"?>
<transition xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/color1" />
<item android:drawable="#color/color2" />
</transition>
`
Then, in your xml for this button (or another element / View) you should reference this TransitionDrawable in the android:background attribute.
Also you should have colors stored as resources: for this, you have to create an xml like following:
`
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<color name="color1">#990000</color>
<color name="color2">#cc3311</color>
</resources>
`
and save this xml file in the /res/values/ folder, name the xml as color.xml.
And initiate the transition in code:
`
int durationMillis = 2000;
TransitionDrawable transition = (TransitionDrawable) changeColorBtn.getBackground();
transition.startTransition(durationMillis);
`
This is helped me, I hope it will be useful for others.
Related
I'm making an app that has buttons and when a button is clicked, it will play a sound. My problem is that I couldn't find a way to change mSoundButton's background when pressed and released. I'm using 'background' instead of 'src' so I can shrink the button without cutting from edges. I haven't added sounds yet because I want to solve this issue before starting to add sounds.
Here is my codes for the button in MainActivity.java (It works okay, but not in the way I wanted. It changes background when pressed but not released.)
final ImageButton mSoundBtn;
final boolean[] soundBtnClicked = {false};
mSoundBtn = findViewById(R.id.soundButton);
mSoundBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(soundBtnClicked[0])
mSoundBtn.setBackgroundResource(R.drawable.button_clicked);
else
mSoundBtn.setBackgroundResource(R.drawable.button_not_clicked);
soundBtnClicked[0] = !soundBtnClicked[0];
}
});
and here is my activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical">
<ImageView
android:id="#+id/soundButton"
android:layout_width="match_parent"
android:layout_height="70dp"
android:background="#drawable/button_not_clicked"
android:contentDescription="TODO" />
</LinearLayout>
UPDATE (PROBLEM SOLVED):
I wanted the mSoundBtn to change image when pressed, then change image again when it is released. I used the Handler class and the postDelayed() method to create a delay between two image changes. It doesn't actually wait for user to release the button but still solved my issue. Following is the solution I found:
public ImageButton mSoundBtn;
Handler h = new Handler();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSoundBtn = findViewById(R.id.soundButton);
mSoundBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mSoundBtn.setBackgroundResource(R.drawable.button_clicked);
h.postDelayed(new Runnable() {
public void run() {
mSoundBtn.setBackgroundResource(R.drawable.button_not_clicked);
}
}, 1000); // 1 Second
}
});
What happens is when the mSoundBtn is clicked, It changes image and waits for 1000 milliseconds (1 second), then changes back to previous image which creates some kind of animation when it is pressed so the user can understand when the button is pressed.
Thanks for anyone who have tried to help, thanks for reading. :)
You shouldn't define it as 'final'
Sample:
public class SampleActivity extends AppCompatActivity {
//Variables
public ImageButton mSoundBtn;
public boolean isSoundBtnSelected = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sample);
mSoundBtn = findViewById(R.id.soundButton);
mSoundBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(!isSoundBtnSelected)
mSoundBtn.setBackgroundResource(R.drawable.button_clicked);
else
mSoundBtn.setBackgroundResource(R.drawable.button_not_clicked);
isSoundBtnSelected = !isSoundBtnSelected;
}
});
}
}
If I understand you correctly, you want an action to be done after the user removed the finger from the button (meaning the press is done).
Try using OnTouchListener instead of OnClickListener:
imageButton.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event)
{
if(event.getAction() == MotionEvent.ACTION_UP)
{
// change background and other stuff...
return true;
}
return false;
}
});
If you only wanted to change the button's background when it pressed, you can use a selector drawable for that, like so:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="#color/black" /> <!-- pressed -->
<item android:state_activated="true"
android:drawable="#color/colorAccent" /> <!-- focused -->
<item android:drawable="#color/colorPrimary" /> <!-- default -->
and just place it as the button's background.
Another option is to use a toggle button and OnChecked listener and change the background when the user checks (press) the button. If you want the background to be permanently changed after the first toggle you can implement this by changing the background only after the first toggle.
So I have a menu item, that's defined as:
<item
android:id="#+id/action_live"
android:title="#string/action_live"
android:orderInCategory="1"
app:showAsAction="ifRoom|withText" />
It shows as text, as you can see below:
And I want to programmatically change the "LIVE" text color. I've searched for a while and I found a method:
With globally defined:
private Menu mOptionsMenu;
and:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
mOptionsMenu = menu;
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
I do:
MenuItem liveitem = mOptionsMenu.findItem(R.id.action_live);
SpannableString s = new SpannableString(liveitem.getTitle().toString());
s.setSpan(new ForegroundColorSpan(Color.RED), 0, s.length(), 0);
liveitem.setTitle(s);
But nothing happens!
If I do the same for an item of the overflow menu, it works:
Is there some limitation for app:showAsAction="ifRoom|withText" items? Is there any workaround?
Thanks in advance.
Bit late to the party with this one, but I spent a while working on this and found a solution, which may be of use to anyone else trying to do the same thing. Some credit goes to Harish Sridharan for steering me in the right direction.
You can use findViewById(R.id.MY_MENU_ITEM_ID) to locate the menu item (provided that the menu had been created and prepared), and cast it to a TextView instance as suggested by Harish, which can then be styled as required.
public class MyAwesomeActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
super.onCreate(savedInstanceState);
// Force invalidatation of the menu to cause onPrepareOptionMenu to be called
invalidateOptionsMenu();
}
private void styleMenuButton() {
// Find the menu item you want to style
View view = findViewById(R.id.YOUR_MENU_ITEM_ID_HERE);
// Cast to a TextView instance if the menu item was found
if (view != null && view instanceof TextView) {
((TextView) view).setTextColor( Color.BLUE ); // Make text colour blue
((TextView) view).setTextSize(TypedValue.COMPLEX_UNIT_SP, 24); // Increase font size
}
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
boolean result = super.onPrepareOptionsMenu(menu);
styleMenuButton();
return result;
}
}
The trick here is to force the menu to be invalidated in the activity's onCreate event (thereby causing the onPrepareMenuOptions to be called sooner than it would normally). Inside this method, we can locate the menu item and style as required.
#RRP give me a clue ,but his solution does not work for me. And #Box give a another, but his answer looks a little not so cleaner. Thanks them. So according to them, I have a total solution.
private static void setMenuTextColor(final Context context, final Toolbar toolbar, final int menuResId, final int colorRes) {
toolbar.post(new Runnable() {
#Override
public void run() {
View settingsMenuItem = toolbar.findViewById(menuResId);
if (settingsMenuItem instanceof TextView) {
if (DEBUG) {
Log.i(TAG, "setMenuTextColor textview");
}
TextView tv = (TextView) settingsMenuItem;
tv.setTextColor(ContextCompat.getColor(context, colorRes));
} else { // you can ignore this branch, because usually there is not the situation
Menu menu = toolbar.getMenu();
MenuItem item = menu.findItem(menuResId);
SpannableString s = new SpannableString(item.getTitle());
s.setSpan(new ForegroundColorSpan(ContextCompat.getColor(context, colorRes)), 0, s.length(), 0);
item.setTitle(s);
}
}
});
}
In order to change the colour of menu item you can find that item, extract the title from it, put it in a Spannable String and set the foreground colour to it. Try out this code piece
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
MenuItem mColorFullMenuBtn = menu.findItem(R.id.action_submit); // extract the menu item here
String title = mColorFullMenuBtn.getTitle().toString();
if (title != null) {
SpannableString s = new SpannableString(title);
s.setSpan(new ForegroundColorSpan(Color.parseColor("#FFFFFF")), 0, s.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE); // provide whatever color you want here.
mColorFullMenuBtn.setTitle(s);
}
return super.onCreateOptionsMenu(menu);
}
It only becomes a text view after inspection, its real class is ActionMenuItemView, on which we can further set the text color like this:
public static void setToolbarMenuItemTextColor(final Toolbar toolbar,
final #ColorRes int color,
#IdRes final int resId) {
if (toolbar != null) {
for (int i = 0; i < toolbar.getChildCount(); i++) {
final View view = toolbar.getChildAt(i);
if (view instanceof ActionMenuView) {
final ActionMenuView actionMenuView = (ActionMenuView) view;
// view children are accessible only after layout-ing
actionMenuView.post(new Runnable() {
#Override
public void run() {
for (int j = 0; j < actionMenuView.getChildCount(); j++) {
final View innerView = actionMenuView.getChildAt(j);
if (innerView instanceof ActionMenuItemView) {
final ActionMenuItemView itemView = (ActionMenuItemView) innerView;
if (resId == itemView.getId()) {
itemView.setTextColor(ContextCompat.getColor(toolbar.getContext(), color));
}
}
}
}
});
}
}
}
}
You could put the change of the color in the onPrepareOptionsMenu:
override fun onPrepareOptionsMenu(menu: Menu?): Boolean
{
val signInMenuItem = menu?.findItem(R.id.menu_main_sign_in)
val title = signInMenuItem?.title.toString()
val spannable = SpannableString(title)
spannable.setSpan(
ForegroundColorSpan(Color.GREEN),
0,
spannable.length,
Spannable.SPAN_INCLUSIVE_INCLUSIVE)
SgnInMenuItem?.title = spannable
return super.onPrepareOptionsMenu(menu)
}
of course you can make it shorter above...
now you can change the color appearance upon other (ie. viewmodel) values...
RG
I spent a lot of hours on this and finally got it into work. There is easy solusion for Android 6 and 7 but it doesn't work on Android 5. This code works on all of them. So, if you are doing it in Kotlin this is my suggestion:
override fun onCreateOptionsMenu(menu: Menu): Boolean {
menuInflater.inflate(R.menu.my_menu, menu)
setToolbarActionTextColor(menu, R.color.black)
this.menu = menu
return true
}
private fun setToolbarActionTextColor(menu: Menu, color: Int) {
val tb = findViewById<Toolbar>(R.id.toolbar)
tb?.let { toolbar ->
toolbar.post {
val view = findViewById<View>(R.id.my_tag)
if (view is TextView) {
view.setTextColor(ContextCompat.getColor(this, color))
} else {
val mi = menu.findItem(R.id.my_tag)
mi?.let {
val newTitle: Spannable = SpannableString(it.title.toString())
val newColor = ContextCompat.getColor(this, color)
newTitle.setSpan(ForegroundColorSpan(newColor),
0, newTitle.length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
it.title = newTitle
}
}
}
}
}
It's complicated, but you can use the app:actionLayout attribute. For example,
my_menu.xml:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/englishList"
android:orderInCategory="1"
app:showAsAction="ifRoom|withText"
app:actionLayout="#layout/custom_menu_item_english_list"
android:title=""/>
</menu>
custom_menu_item_english_list.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/englishListWhiteText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:lineHeight="16dp"
android:textSize="16sp"
android:text="英文"
android:layout_marginRight="8dp"/>
</LinearLayout>
MainActivity.java:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.my_menu, menu);
MenuItem item = menu.findItem(R.id.englishList);
item.getActionView().findViewById(R.id.englishListWhiteText)
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
//Handle button click.
}
});
return true;
}
Result:
More Detailed Example=
https://medium.com/#info.anikdey003/custom-menu-item-using-action-layout-7a25118b9d5
if you are using popup menu function to show the menu items in the application and trying to change the design or color of your text items in the menu list, first create a style item in your style.xml file:
<style name="PopupMenuStyle" parent="Widget.AppCompat.PopupMenu">
<item name="android:layout_width">match_parent</item>
<item name="android:layout_gravity">center</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:textColor">#color/ColorPrimary</item>
<item name="android:textSize">#dimen/textsize</item>
<item name="android:fontFamily">#font/myfonts</item></style>
and use this style in your code as:
val popupWrapper = ContextThemeWrapper(this, R.style.PopupMenuStyle)
val popup = PopupMenu(popupWrapper, your_menu_view)
MenuItem as defined by documentation is an interface. It will definitely be implemented with a view widget before being portrayed as an menu. Most cases these menu items are implemented as TextView. You can use UiAutomatorViewer to see the view hierarchy or even use hierarchyviewer which will be found in [sdk-home]/tools/. Attached one sample uiautomatorviewer screenshot for a MenuItem
So you can always typecast your MenuItem and set the color.
TextView liveitem = (TextView)mOptionsMenu.findItem(R.id.action_live);
liveitem.setTextColor(Color.RED);
EDIT:
Since there was request to see how to use this tool, I'm adding a few more contents.
Make sure you have set environment variable $ANDROID_HOME pointing to your SDK HOME.
In your terminal:
cd $ANDROID_HOME
./tools/uiautomatorviewer
This tool will open up.
The second or third button (refer screenshot) in the menu will capture the screenshot of your attached device or emulator and you can inspect the view and their hierarchy. Clicking on the view will describe the view and their information. It is tool purposely designed for testing and you can inspect any application.
Refer developer site for more info: uiautomatorviewer
I am trying to toggle my button's background drawables, so that when the user clicks the button its background is changed and when the user clicks the button again its background returns to defaul. Here is my code:
public void Favorites(View V) {
Button star = (Button) findViewById(R.id.buttonStar);
if(star.getBackground().equals(R.drawable.btn_star_off)) {
star.setBackgroundResource(R.drawable.btn_star_on);
} else {
star.setBackgroundResource(R.drawable.btn_star_off);
}
}
I am pretty sure this is not how you use drawables with if statements. Can someone suggest a way to do it?
private boolean isButtonClicked = false; // You should add a boolean flag to record the button on/off state
protected void onCreate(Bundle savedInstanceState) {
......
Button star = (Button) findViewById(R.id.buttonStar);
star.setOnClickListener(new OnClickListener() { // Then you should add add click listener for your button.
#Override
public void onClick(View v) {
if (v.getId() == R.id.buttonStar) {
isButtonClicked = !isButtonClicked; // toggle the boolean flag
v.setBackgroundResource(isButtonClicked ? R.drawable.btn_star_on : R.drawable.btn_star_off);
}
}
});
}
You can create an xml in the drawable folder.
This xml (you choose the name...let's call it "bg_button_star.xml") could look just like this:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true" android:drawable="#drawable/btn_star_on" />
<item android:drawable="#drawable/btn_star_off" />
Then you have to assign this drawable file to the Button background property in the layout file.
android:background="#drawable/bg_button_star"
If you want to do this programmatically then you just have to do:
button.setBackgroundResource(R.drawable.bg_button_star);
When the user click the first time on the button, you set the Selected state to 'true'. The background changes accordingly. (viceversa for the 'false' Selected state).
You can do in your onClick() something like:
if(star.getTag()==R.drawable.btn_star_on){
star.setTag(R.drawable.btn_star_off);
star.setBackgroundResource(R.drawable.btn_star_off);
} else {
star.setTag(R.drawable.btn_star_on);
star.setBackgroundResource(R.drawable.btn_star_on);
}
Obviously it's better to the the tag before the if and else statement based on your informations. I don't know the rest of your code and how you check if this button has to be iniziatilized with the drawable resource btn_star_off or btn_star_on
You can try this.
public void Favorites(View V) {
Button star = (Button) findViewById(R.id.buttonStar);
if(star.getBackground().getConstantState().equals(getResources().getDrawable(R.drawable.btn_star_off).getConstantState()))
{
star.setBackground(R.drawable.btn_star_on);
} else {
star.setBackground(R.drawable.btn_star_off);
}
}
But make sure you are calling this method onClick() of the start button.
Other wise you have to do something like this.
Button star = (Button) findViewById(R.id.buttonStar);
star.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(v.getBackground().getConstantState().equals(getResources().getDrawable(R.drawable.btn_star_off).getConstantState()))
{
v.setBackground(R.drawable.btn_star_on);
} else {
v.setBackground(R.drawable.btn_star_off);
}
}
});
In this case, instead of using Button you should use ToggleButton.
There is a API Guide for it:
http://developer.android.com/guide/topics/ui/controls/togglebutton.html
Dont do it like that. Use a selector resource instead http://www.compiletimeerror.com/2014/03/android-button-selector-tutorial-with.html
I am having a button I want to do toggle on button like on and off,What I required is I am having two backgroundimages.
When I first time tap on button first background image should be done and on second time second background image should be changed like in toggle button.
Anybody please help me as I am new to android.
This is my activity:
public class MainActivity extends Activity {
private Button Button1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button1 = (Button) findViewById(R.id.Button1);
Button1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
v.setBackgroundResource(R.drawable.ic_launcher);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
Thanks.
Create a xml file in the drawable with the following code and change the background of the button to this drawable
customButton.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="false" android:drawable="#drawable/image_not_pressed"> </item>
<item android:state_pressed="true" android:drawable="#drawable/image_pressed"></item>
</selector>
Then add background to the image
<ImageView
android:layoutWidth="wrap_content"
android:layoutWidth="wrap_content"
android:background="#drawable/customButtom" />
You can use setTag to do that.
First>
Button1.setTag("ON");
and secondly in your onclicklistener add this:
if (v.getTag().toString().equals("ON")) {
v.setTag("OFF");
v.setBackgroundResource(R.drawable.ic_launcher);
}else {
v.setTag("ON");
v.setBackgroundResource(R.drawable.ic_launcher2);
}
Use ImageButton instead of Button,change image on the surface of the ImageButton by the setImageResource(int) method.
You can maintain the setSelected state for the Button and change the image by checking if it isSelected on Button click
Try using
Button button = new Button(this);
button.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
if (v.isSelected())
{
v.setSelected(false);
}
else
{
v.setSelected(true);
}
}
});
Let me know if this works.
I have a field where the user can type a search query in the action bar of the application. This is declared in the action bar using a menu inflate in the Activity:
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
>
<item
android:id="#+id/action_search"
android:showAsAction="ifRoom"
android:actionViewClass="android.widget.SearchView"
android:title="#string/search"
></item>
</menu>
I need to customize the appearance of the SearchView (for instance background and text color). So far I could not find a way to do it using XML (using styles or themes).
Is my only option to do it in the code when inflating the menu?
Edit #1: I have tried programmatically but I cannot get a simple way to set the text color. Plus when I do searchView.setBackgroundResource(...) The background is set on the global widget, (also when the SearchView is iconified).
Edit #2: Not much information on the Search Developer Reference either
Seibelj had an answer that is good if you want to change the icons. But you'll need to
do it for every API version. I was using ICS with ActionBarSherlock and it didn't do justice for me but it did push me in the correct direction.
Below I change the text color and hint color. I showed how you might go about changing the
icons too, though I have no interest in that for now (and you probably want to use the default icons anyways to be consistent)
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// Set up the search menu
SearchView searchView = (SearchView)menu.findItem(R.id.action_search).getActionView();
traverseView(searchView, 0);
return true;
}
private void traverseView(View view, int index) {
if (view instanceof SearchView) {
SearchView v = (SearchView) view;
for(int i = 0; i < v.getChildCount(); i++) {
traverseView(v.getChildAt(i), i);
}
} else if (view instanceof LinearLayout) {
LinearLayout ll = (LinearLayout) view;
for(int i = 0; i < ll.getChildCount(); i++) {
traverseView(ll.getChildAt(i), i);
}
} else if (view instanceof EditText) {
((EditText) view).setTextColor(Color.WHITE);
((EditText) view).setHintTextColor(R.color.blue_trans);
} else if (view instanceof TextView) {
((TextView) view).setTextColor(Color.WHITE);
} else if (view instanceof ImageView) {
// TODO dissect images and replace with custom images
} else {
Log.v("View Scout", "Undefined view type here...");
}
}
adding my take on things which is probably a little more efficient and safe across different android versions.
you can actually get a numeric ID value from a string ID name. using android's hierarchyviewer tool, you can actually find the string IDs of the things you are interested in, and then just use findViewById(...) to look them up.
the code below sets the hint and text color for the edit field itself. you could apply the same pattern for other aspects that you wish to style.
private static synchronized int getSearchSrcTextId(View view) {
if (searchSrcTextId == -1) {
searchSrcTextId = getId(view, "android:id/search_src_text");
}
return searchSrcTextId;
}
private static int getId(View view, String name) {
return view.getContext().getResources().getIdentifier(name, null, null);
}
#TargetApi(11)
private void style(View view) {
ImageView iv;
AutoCompleteTextView actv = (AutoCompleteTextView) view.findViewById(getSearchSrcTextId(view));
if (actv != null) {
actv.setHint(getDecoratedHint(actv,
searchView.getContext().getResources().getString(R.string.titleApplicationSearchHint),
R.drawable.ic_ab_search));
actv.setTextColor(view.getContext().getResources().getColor(R.color.ab_text));
actv.setHintTextColor(view.getContext().getResources().getColor(R.color.hint_text));
}
}
You can use the attribute android:actionLayout instead which lets you specify a layout to be inflated. Just have a layout with your SearchView and you won't have to modify anything really.
As to changing text style on the SearchView that is probably not possible as the SearchView is a ViewGroup. You should probably try changing text color via themes instead.
In case anyone wants to modify the views directly, here is how you can change the colors/fonts/images and customize the search box to your pleasure. It is wrapped in a try/catch in case there are differences between versions or distributions, so it won't crash the app if this fails.
// SearchView structure as we currently understand it:
// 0 => linearlayout
// 0 => textview (not sure what this does)
// 1 => image view (the search icon before it's pressed)
// 2 => linearlayout
// 0 => linearlayout
// 0 => ImageView (Search icon on the left of the search box)
// 1 => SearchView$SearchAutoComplete (Object that controls the text, subclass of TextView)
// 2 => ImageView (Cancel icon to the right of the text entry)
// 1 => linearlayout
// 0 => ImageView ('Go' icon to the right of cancel)
// 1 => ImageView (not sure what this does)
try {
LinearLayout ll = (LinearLayout) searchView.getChildAt(0);
LinearLayout ll2 = (LinearLayout) ll.getChildAt(2);
LinearLayout ll3 = (LinearLayout) ll2.getChildAt(0);
LinearLayout ll4 = (LinearLayout) ll2.getChildAt(1);
TextView search_text = (TextView) ll3.getChildAt(1);
search_text.setTextColor(R.color.search_text);
ImageView cancel_icon = (ImageView)ll3.getChildAt(2);
ImageView accept_icon = (ImageView)ll4.getChildAt(0);
cancel_icon.setBackgroundDrawable(d);
accept_icon.setBackgroundDrawable(d);
} catch (Throwable e) {
Log.e("SearchBoxConstructor", "Unable to set the custom look of the search box");
}
This example shows changing the text color and the background colors of the cancel/accept images. searchView is a SearchView object already instantiated with it's background color:
Drawable d = getResources().getDrawable(R.drawable.search_widget_background);
searchView.setBackgroundDrawable(d);
Here is the drawable code:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="#color/white" />
</shape>
Obviously, this is hacky, but it will work for now.
From ICS this is doable using themes and styles. I'm using ActionBarSherlock which makes it applicable also for HC and below.
Add a style to define "android:textColorHint":
<style name="Theme.MyHolo.widget" parent="#style/Theme.Holo">
<item name="android:textColorHint">#color/text_hint_corp_dark</item>
</style>
Apply this as "actionBarWidgetTheme" to your theme:
<style name="Theme.MyApp" parent="#style/Theme.Holo.Light.DarkActionBar">
...
<item name="android:actionBarWidgetTheme">#style/Theme.MyHolo.widget</item>
</style>
Presto! Make sure that you use getSupportActionBar().getThemedContext() (or getSupportActionBar() for ActionBarSherlock) if any widgets are initiated where you might have other themes in effect.
How do you inflate the menu xml in your Activity? if you inflate the menu by using getMenuInflator() in your Activity, then the menu and also the searchView get the themed context, that have attached to the activity.
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater.inflate(R.menu.search_action_menu, menu);
}
if you check the source code of Activity.getMenuInflator() at API-15, you can see the themed context codes. Here it is.
*/
public MenuInflater getMenuInflater() {
// Make sure that action views can get an appropriate theme.
if (mMenuInflater == null) {
initActionBar();
if (mActionBar != null) {
mMenuInflater = new MenuInflater(mActionBar.getThemedContext());
} else {
mMenuInflater = new MenuInflater(this);
}
}
return mMenuInflater;
}