Example usage for android.graphics Canvas Canvas

Introduction

In this page you can find the example usage for android.graphics Canvas Canvas.

Prototype

@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
public Canvas(long nativeCanvas)

Source Link

Usage

From source file:Main.java

public static Bitmap addWhiteBorder(Bitmap bmp, int borderSize) {
    Bitmap bmpWithBorder = Bitmap.createBitmap(bmp.getWidth() + borderSize * 2,
            bmp.getHeight() + borderSize * 2, bmp.getConfig());
    Canvas canvas = new Canvas(bmpWithBorder);
    canvas.drawColor(Color.WHITE);
    canvas.drawBitmap(bmp, borderSize, borderSize, null);
    return bmpWithBorder;
}

From source file:Main.java

public static Bitmap combineTwoBitmaps(Bitmap background, Bitmap foreground) {
    Bitmap combinedBitmap = Bitmap.createBitmap(background.getWidth(), background.getHeight(),
            background.getConfig());// w w w . java 2 s.  c  om
    Canvas canvas = new Canvas(combinedBitmap);
    Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(background, 0, 0, paint);
    canvas.drawBitmap(foreground, 0, 0, paint);
    return combinedBitmap;
}

From source file:Main.java

public static Bitmap getDrawableBitmap(Drawable drawable) {
    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),
            Bitmap.Config.ARGB_8888);//from ww w. ja v a 2 s  .c  o  m
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    drawable.draw(canvas);
    return bitmap;
}

From source file:Main.java

public static Bitmap cutBitmap(Bitmap mBitmap, Rect r, Bitmap.Config config) {
    int width = r.width();
    int height = r.height();

    Bitmap croppedImage = Bitmap.createBitmap(width, height, config);

    Canvas cvs = new Canvas(croppedImage);
    Rect dr = new Rect(0, 0, width, height);
    cvs.drawBitmap(mBitmap, r, dr, null);
    return croppedImage;
}

From source file:Main.java

public static Bitmap buildSequence(Context context, String text) {
    Bitmap myBitmap = Bitmap.createBitmap(160, 84, Bitmap.Config.ARGB_4444);
    Canvas myCanvas = new Canvas(myBitmap);
    Paint paint = new Paint();
    //Typeface font = Typeface.createFromAsset(context.getAssets(),"fonts/7LED.ttf");
    paint.setAntiAlias(true);/*from   w  w w .j  a va  2 s  . c  o  m*/
    paint.setSubpixelText(true);
    //paint.setTypeface(font);
    paint.setStyle(Paint.Style.FILL);
    paint.setColor(Color.YELLOW);
    paint.setTextSize(65);
    paint.setTextAlign(Paint.Align.CENTER);
    myCanvas.drawText(text, 80, 60, paint);
    return myBitmap;
}

From source file:Main.java

private static Bitmap toBitmap(Drawable drawable, int width, int height) {

    Bitmap bmp = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas c = new Canvas(bmp);
    drawable.setBounds(new Rect(0, 0, width, height));
    drawable.draw(c);//w  w  w  .  j a  v  a2 s . c o  m

    return bmp;
}

From source file:Main.java

public static Bitmap convertViewToBitmap(View v) {
    if (v == null) {
        return null;
    }/*from   w w  w.  j  a va  2  s. co m*/
    Bitmap screenshot;
    screenshot = Bitmap.createBitmap(v.getWidth(), v.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas c = new Canvas(screenshot);
    v.draw(c);
    return screenshot;
}

From source file:Main.java

public static Bitmap getBitmapFromView(View v) {
    if (v == null) {
        return null;
    }/*from  ww  w  . ja  va  2 s . c o  m*/
    Bitmap screenShot;
    screenShot = Bitmap.createBitmap(v.getWidth(), v.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas mCanvas = new Canvas(screenShot);
    mCanvas.translate(-v.getScrollX(), -v.getScrollY());
    v.draw(mCanvas);
    return screenShot;
}

From source file:Main.java

public static Bitmap highlightSelectedFaceThumbnail(Bitmap originalBitmap) {
    Bitmap bitmap = originalBitmap.copy(Bitmap.Config.ARGB_8888, true);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    paint.setAntiAlias(true);//from   w ww .j  a va  2  s  . com
    paint.setStyle(Paint.Style.STROKE);
    paint.setColor(Color.parseColor("#3399FF"));
    int stokeWidth = Math.max(originalBitmap.getWidth(), originalBitmap.getHeight()) / 10;
    if (stokeWidth == 0) {
        stokeWidth = 1;
    }
    bitmap.getWidth();
    paint.setStrokeWidth(stokeWidth);
    canvas.drawRect(0, 0, bitmap.getWidth(), bitmap.getHeight(), paint);

    return bitmap;
}

From source file:Main.java

public static Bitmap getScreenshotsForCurrentWindow(Activity activity) {
    View cv = activity.getWindow().getDecorView();
    Bitmap bmp = Bitmap.createBitmap(cv.getWidth(), cv.getHeight(), Bitmap.Config.ARGB_4444);
    cv.draw(new Canvas(bmp));
    return bmp;/*from   ww w  .  java2s . c  o m*/
}