I have created one EditText programatically when I type in EditText if the text goes to next line then I want to draw horizontal line inside EditText. How can I achieve it ?
As per the Raghunandan comment, You can use this class in your project
LinedEditText.java
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.widget.EditText;
public class LinedEditText extends EditText {
private Paint mPaint = new Paint();
public LinedEditText(Context context) {
super(context);
initPaint();
}
public LinedEditText(Context context, AttributeSet attrs) {
super(context, attrs);
initPaint();
}
public LinedEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initPaint();
}
private void initPaint() {
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setColor(0x80000000);
}
#Override protected void onDraw(Canvas canvas) {
int left = getLeft();
int right = getRight();
int paddingTop = getPaddingTop();
int paddingBottom = getPaddingBottom();
int paddingLeft = getPaddingLeft();
int paddingRight = getPaddingRight();
int height = getHeight();
int lineHeight = getLineHeight();
int count = (height-paddingTop-paddingBottom) / lineHeight;
for (int i = 0; i < count; i++) {
int baseline = lineHeight * (i+1) + paddingTop;
canvas.drawLine(left+paddingLeft, baseline, right-paddingRight, baseline, mPaint);
}
super.onDraw(canvas);
}
}
use it in layout file
<yourpackagename.LinedEditText
android:id="#+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#android:color/transparent"
android:ems="10"
android:gravity="top"
android:hint="#string/note_body"
android:inputType="textMultiLine"
android:lineSpacingExtra="4dp"
android:textColor="#000000"
android:textColorHint="#e2e2e2" />
Related
I want an underline below OPTING like below, but when i create this will the help of customview, underline appears just below opting but i want some space between text and line like image
I had created a Custom view, in which a word will searched in a string if that is found, then that corresponding text will be underlined but the only thing i want is to give some space between underline and text,
My class is as follows,
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.support.v7.widget.AppCompatTextView;
import android.text.Layout;
import android.util.AttributeSet;
import android.view.Display;
import android.view.WindowManager;
import android.widget.TextView;
public class UnderLine extends AppCompatTextView {
private Rect mRect;
private Paint mPaint;
private int mColor;
private float density;
private float mStrokeWidth;
private String stringSeach;
public UnderLine(Context context) {
this(context, null, 0);
}
public UnderLine(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public UnderLine(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs, defStyleAttr);
}
private void init(Context context, AttributeSet attributeSet, int defStyle) {
density = context.getResources().getDisplayMetrics().density;
TypedArray typedArray = context.obtainStyledAttributes(attributeSet, R.styleable.UnderLine, defStyle, 0);
mColor = typedArray.getColor(R.styleable.UnderLine_underlineColorr, 0xFFFF0000);
stringSeach = typedArray.getString(R.styleable.UnderLine_underlineTextt);
mStrokeWidth = typedArray.getDimension(R.styleable.UnderLine_underlineWidthh, density * 2);
typedArray.recycle();
mRect = new Rect();
mPaint = new Paint();
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setColor(mColor); //line mColor
mPaint.setStrokeWidth(mStrokeWidth);
}
public int getUnderLineColor() {
return mColor;
}
public void setUnderLineColor(int mColor) {
this.mColor = mColor;
invalidate();
}
public float getUnderlineWidth() {
return mStrokeWidth;
}
public void setUnderlineWidth(float mStrokeWidth) {
this.mStrokeWidth = mStrokeWidth;
invalidate();
}
#Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension( getMeasuredWidth(), getMeasuredHeight()+110);
}
#Override
protected void onDraw(Canvas canvas) {
TextView parentTextView = this;
Rect parentTextViewRect = new Rect();
String targetWord = stringSeach.toLowerCase();
int startOffsetOfClickedText = this.getText().toString().toLowerCase().indexOf(targetWord);
int endOffsetOfClickedText = startOffsetOfClickedText + targetWord.length();
// Initialize values for the computing of clickedText position
Layout textViewLayout = parentTextView.getLayout();
double startXCoordinatesOfClickedText = textViewLayout.getPrimaryHorizontal((int)startOffsetOfClickedText);
double endXCoordinatesOfClickedText = textViewLayout.getPrimaryHorizontal((int)endOffsetOfClickedText);
// Get the rectangle of the clicked text
int currentLineStartOffset = textViewLayout.getLineForOffset((int)startOffsetOfClickedText);
int currentLineEndOffset = textViewLayout.getLineForOffset((int)endOffsetOfClickedText);
boolean keywordIsInMultiLine = currentLineStartOffset != currentLineEndOffset;
textViewLayout.getLineBounds(currentLineStartOffset, parentTextViewRect);
// Update the rectangle position to his real position on screen
int[] parentTextViewLocation = {0,0};
parentTextView.getLocationOnScreen(parentTextViewLocation);
double parentTextViewTopAndBottomOffset = (
//parentTextViewLocation[1] -
parentTextView.getScrollY() +
parentTextView.getCompoundPaddingTop()
);
parentTextViewRect.top += parentTextViewTopAndBottomOffset;
parentTextViewRect.bottom += parentTextViewTopAndBottomOffset;
// In the case of multi line text, we have to choose what rectangle take
if (keywordIsInMultiLine){
WindowManager wm = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
int screenHeight = display.getHeight();
int dyTop = parentTextViewRect.top;
int dyBottom = screenHeight - parentTextViewRect.bottom;
boolean onTop = dyTop > dyBottom;
if (onTop){
endXCoordinatesOfClickedText = textViewLayout.getLineRight(currentLineStartOffset);
}
else{
parentTextViewRect = new Rect();
textViewLayout.getLineBounds(currentLineEndOffset, parentTextViewRect);
parentTextViewRect.top += parentTextViewTopAndBottomOffset;
parentTextViewRect.bottom += parentTextViewTopAndBottomOffset;
startXCoordinatesOfClickedText = textViewLayout.getLineLeft(currentLineEndOffset);
}
}
parentTextViewRect.left += (
parentTextViewLocation[0] +
startXCoordinatesOfClickedText +
parentTextView.getCompoundPaddingLeft() -
parentTextView.getScrollX()
);
parentTextViewRect.right = (int) (
parentTextViewRect.left +
endXCoordinatesOfClickedText -
startXCoordinatesOfClickedText
);
canvas.drawLine(parentTextViewRect.left,parentTextViewRect.bottom+mStrokeWidth, parentTextViewRect.right,
parentTextViewRect.bottom+mStrokeWidth, mPaint);
super.onDraw(canvas);
}
}
attrs.xml is as follows,
<declare-styleable name="UnderLine" >
<attr name="underlineWidthh" format="dimension" />
<attr name="underlineColorr" format="color" />
<attr name="underlineTextt" format="string" />
</declare-styleable>
Sample layout as follows,
<UnderLine
style="#style/textView"
android:gravity="top|center"
app:underlineColorr="#color/signup_bottom_darkWhite"
app:underlineWidthh="2dp"
app:underlineTextt="OPTING"
android:text="ON FREE PARKING + DISCOUNTED RATES \n BY OPTING IN"/>
I am a beginner with customview, and i had created this with the help of some answers on stackoverflow. Please don't suggest any other way to do this.
Anyhelp will be greatly appreciated.
I had developed my own view, as follows,
package com.example.reprator.underlinetextview;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.support.v7.widget.AppCompatTextView;
import android.text.Layout;
import android.util.AttributeSet;
public class UnderlinedTextView extends AppCompatTextView {
private Rect mRect;
private Paint mPaint;
private int mColor;
private float mStrokeWidth;
private float mMarginTop;
private boolean isAllSelected;
private int lineNumber;
private int selectTextEachLine;
public UnderlinedTextView(Context context) {
this(context, null, 0);
}
public UnderlinedTextView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public UnderlinedTextView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs, defStyleAttr);
}
private void init(Context context, AttributeSet attributeSet, int defStyle) {
float density = context.getResources().getDisplayMetrics().density;
TypedArray typedArray = context.obtainStyledAttributes(attributeSet, R.styleable.UnderlinedTextView, defStyle, 0);
mColor = typedArray.getColor(R.styleable.UnderlinedTextView_underlineColor, 0xFFFF0000);
mStrokeWidth = typedArray.getDimension(R.styleable.UnderlinedTextView_underlineWidth, density * 2);
mMarginTop = typedArray.getDimension(R.styleable.UnderlinedTextView_underlineMarginTop, density * 2);
isAllSelected = typedArray.getBoolean(R.styleable.UnderlinedTextView_underlineIsAll, false);
lineNumber = typedArray.getInteger(R.styleable.UnderlinedTextView_underlineNoLine, 1);
selectTextEachLine = typedArray.getInteger(R.styleable.UnderlinedTextView_underlineTextEachLine, 3);
typedArray.recycle();
mRect = new Rect();
mPaint = new Paint();
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setColor(mColor); //line mColor
mPaint.setStrokeWidth(mStrokeWidth);
}
public int getUnderLineColor() {
return mColor;
}
public void setUnderLineColor(int mColor) {
this.mColor = mColor;
invalidate();
}
public float getUnderlineWidth() {
return mStrokeWidth;
}
public void setUnderlineWidth(float mStrokeWidth) {
this.mStrokeWidth = mStrokeWidth;
invalidate();
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int h = (int) (getMeasuredHeight() + mMarginTop);
setMeasuredDimension(widthMeasureSpec, h);
}
#Override
protected void onDraw(Canvas canvas) {
final Layout layout = getLayout();
float x_start, x_stop;
int firstCharInLine, lastCharInLine;
int limit = isAllSelected ? getLineCount() : lineNumber;
for (int i = 0; i < limit; i++) {
int baseline = getLineBounds(i, mRect);
firstCharInLine = layout.getLineStart(i);
lastCharInLine = layout.getLineEnd(i);
int textHighlight = isAllSelected ? lastCharInLine - 1 : (firstCharInLine + selectTextEachLine);
x_start = layout.getPrimaryHorizontal(firstCharInLine);
x_stop = layout.getPrimaryHorizontal(textHighlight);
float y = baseline + mStrokeWidth + mMarginTop;
canvas.drawLine(x_start, y, x_stop, y, mPaint);
}
super.onDraw(canvas);
}
}
and my attars.xml are as follows,
<declare-styleable name="UnderlinedTextView">
<attr name="underlineWidth" format="dimension" />
<attr name="underlineMarginTop" format="dimension" />
<attr name="underlineColor" format="color" />
<attr name="underlineText" format="string" />
<attr name="underlineIsAll" format="boolean" />
<attr name="underlineNoLine" format="integer" />
<attr name="underlineTextEachLine" format="integer" />
</declare-styleable>
how can appear pagelines in the editText in android , like picture ..?
It is not possible with Default EditText, you need to find out any custom library to use this type of functionality with EditText.
You can do it with custom EditText like the one below (copied from here).
public class LinedEditText extends EditText {
private Paint mPaint = new Paint();
public LinedEditText(Context context) {
super(context);
initPaint();
}
public LinedEditText(Context context, AttributeSet attrs) {
super(context, attrs);
initPaint();
}
public LinedEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initPaint();
}
private void initPaint() {
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setColor(0x80000000);
}
#Override protected void onDraw(Canvas canvas) {
int left = getLeft();
int right = getRight();
int paddingTop = getPaddingTop();
int paddingBottom = getPaddingBottom();
int paddingLeft = getPaddingLeft();
int paddingRight = getPaddingRight();
int height = getHeight();
int lineHeight = getLineHeight();
int count = (height-paddingTop-paddingBottom) / lineHeight;
for (int i = 0; i < count; i++) {
int baseline = lineHeight * (i+1) + paddingTop;
canvas.drawLine(left+paddingLeft, baseline, right-paddingRight, baseline, mPaint);
}
super.onDraw(canvas);
}
}
I'm trying to draw a custom text on an ImageButton. I have overwritten the method onDraw(Canvas) but it didn't work. This is the code:
public class CustomImageButton extends ImageButton {
private static final String TAG = "CustomImageButton";
private String text = "";
private float textSize;
private int textColor;
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
public CustomImageButton(Context context) {
super(context);
initialize(null);
}
public CustomImageButton(Context context, AttributeSet attrs) {
super(context, attrs);
initialize(attrs);
}
public CustomImageButton(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initialize(attrs);
}
private void initialize(AttributeSet attrs) {
if (attrs != null) {
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CustomImageButton);
text = a.getString(R.styleable.CustomImageButton_text);
textSize = a.getDimension(R.styleable.CustomImageButton_textSize, 20);
textColor = a.getColor(R.styleable.CustomImageButton_textColor, getResources().getColor(R.color.white));
//setBackgroundColor(getResources().getColor(R.color.transparent));
a.recycle();
invalidate();
}
}
#Override
protected void onDraw(Canvas canvas) {
Typeface font = Typefaces.get(getContext(), "fonts/my-font.ttf");
paint.setColor(Color.WHITE);
paint.setTypeface(font);
paint.setTextSize(100);
paint.setTextAlign(Paint.Align.CENTER);
int xPos = canvas.getWidth() / 2;
int yPos = (int) ((canvas.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
canvas.drawText(text, xPos, yPos, paint);
}
}
And XML Layout:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#OOOOOO"
xmlns:app="http://schemas.android.com/apk/res-auto">
<com.my.app.CustomImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
app:text="Hello!"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"/>
. . .
</RelativeLayout>
I used setWillNotDraw(false) but it seems that does not work. I have verified that my custom view has a few correct dimensions.
I had successfully created an answer of my This question(left drawable alignment with text in andorid)
but the problem is that the canvas.drawText x co-ordinate is not working properly as the x co-ordinate is not affecting the position of text.
Here is the result with overlapped text on drawable,
I just wanted to remove the overlap and give the distance between the drawable and text on canvas.
Here is my code as follows,
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
android.widget.TextView;
import cl.tt.R;
public class CenterDrawableButton extends TextView{
private Drawable mDrawableCenter;
public CenterDrawableButton(Context context) {
super(context);
init(context, null);
}
public CenterDrawableButton(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs);
}
public CenterDrawableButton(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs);
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
public CenterDrawableButton(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init(context, attrs);
}
private void init(Context context, AttributeSet attrs){
if(attrs!=null){
TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.CenterDrawableButton, 0, 0);
try {
setCenterDrawable(a.getDrawable(R.styleable.CenterDrawableButton_drawableCenter));
} finally {
a.recycle();
}
}
}
public void setCenterDrawable(#Nullable Drawable center) {
int[] state;
state = getDrawableState();
if (center != null) {
center.setState(state);
center.setBounds(0, 0, center.getIntrinsicWidth(), center.getIntrinsicHeight());
center.setCallback(this);
}
mDrawableCenter = center;
invalidate();
requestLayout();
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (mDrawableCenter != null) {
setMeasuredDimension(Math.max(getMeasuredWidth(), mDrawableCenter.getIntrinsicWidth()),
Math.max(getMeasuredHeight(), mDrawableCenter.getIntrinsicHeight()));
}
}
#Override
protected void drawableStateChanged() {
super.drawableStateChanged();
if (mDrawableCenter != null) {
int[] state = getDrawableState();
mDrawableCenter.setState(state);
mDrawableCenter.setBounds(0, 0, mDrawableCenter.getIntrinsicWidth(),
mDrawableCenter.getIntrinsicHeight());
}
invalidate();
}
#Override
protected void onDraw(#NonNull Canvas canvas) {
super.onDraw(canvas);
if (mDrawableCenter != null) {
float textWidth = getPaint().measureText((String)getText());
int newPosition=getWidth()-((int)textWidth+getPaddingLeft() + getPaddingRight()+mDrawableCenter.getIntrinsicWidth()+ (int)getResources().getDimension(R.dimen._5sdp));
if(newPosition>0) {
canvas.translate(newPosition, (getHeight() - mDrawableCenter.getIntrinsicHeight()) / 2);
mDrawableCenter.draw(canvas);
canvas.save();
Paint textPaint = new Paint();
int yPos = (int) ((getHeight() - ((textPaint.descent() + textPaint.ascent())) / 2));
canvas.drawText(getText().toString(), newPosition, yPos, textPaint);
canvas.restore();
}else
{
int gnewPosition=getPaddingLeft() + getPaddingRight()+(int)getResources().getDimension(R.dimen._5sdp);
canvas.translate(gnewPosition, (getHeight() - mDrawableCenter.getIntrinsicHeight()) / 2);
mDrawableCenter.draw(canvas);
canvas.save();
int nggewPosition=getPaddingLeft() + getPaddingRight()+mDrawableCenter.getIntrinsicWidth()+ (int)getResources().getDimension(R.dimen._5sdp);
Paint textPaint = new Paint();
int yPos = (int) (getHeight() - ((textPaint.descent() + textPaint.ascent())) / 2);
canvas.translate(nggewPosition, yPos);
canvas.drawText(getText().toString(), nggewPosition, yPos, textPaint);
canvas.restore();
}
}
}
}
here is the attr,
<attr name="drawableCenter" format="reference"/>
<declare-styleable name="CenterDrawableButton">
<attr name="drawableCenter"/>
</declare-styleable>
I have extended class from ImageView and want some text to be drawn on it. This doesn't work, do you know why? Thank you.
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int imgWidth = getMeasuredWidth();
int imgHeight = getMeasuredHeight();
float txtWidth = mTextPaint.measureText("your text");
int x = Math.round(imgWidth/2 - txtWidth/2);
int y = imgHeight/2 - 6; // 6 is half of the text size
canvas.drawText("your text", x, y, mTextPaint);
}
private void init(Context context, AttributeSet attrs, int defStyle) {
mTextPaint = new Paint();
mTextPaint.setColor(android.R.color.black);
mTextPaint.setTextSize(12);
mTextPaint.setTextAlign(Paint.Align.LEFT);}
I ran your code, and immediately got a Lint error. In init() you are setting your mTextPaint to android.R.color.black. Because it's a static value, I could immediately see that the actual int value of that variable is 0x0106000c, which is almost completely transparent. You should use getResources().getColor(android.R.color.black) or plain ol' Color.BLACK.
Note that a textSize of 12 is very, very small. This code shows 12 (albeit very small).
public class MyImageView extends ImageView {
public MyImageView(Context context, AttributeSet attributeSet, int defStyle) {
super(context, attributeSet, defStyle);
init();
}
public MyImageView(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
init();
}
public MyImageView(Context context) {
super(context);
init();
}
Paint mTextPaint;
private void init() {
mTextPaint = new Paint();
mTextPaint.setColor(Color.BLACK);
mTextPaint.setTextSize(12);
mTextPaint.setTextAlign(Paint.Align.LEFT);
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int imgWidth = getMeasuredWidth();
int imgHeight = getMeasuredHeight();
float txtWidth = mTextPaint.measureText("your text");
int x = Math.round(imgWidth/2 - txtWidth/2);
int y = imgHeight/2 - 6;
canvas.drawText("12", x, y, mTextPaint);
}
}
xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.mytest.MyImageView
android:layout_width="100dp"
android:layout_height="100dp"/>
</RelativeLayout>
Copy/paste, if problem persist, start logging. Again, this code works, I see 12 on my screen.
You should be able to accomplish the desire effect without creating your own class. Just set the background of a TextView with an image drawable. See my example with a text in a speech bubble.
<TextView
android:id="#+id/textOverImage"
android:background="#drawable/speech_bubble"
android:text="#string/hello_world"
android:gravity="center"
android:layout_width="..."
android:layout_height="..."
/>