Example usage for android.graphics Paint setTextSize

Introduction

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

Prototype

public void setTextSize(float textSize) 

Source Link

Document

Set the paint's text size.

Usage

From source file:Main.java

public static Bitmap drawTextToBitmap(Context context, int resId, String text) {

    Resources resources = context.getResources();
    float scale = resources.getDisplayMetrics().density;
    Bitmap bitmap = BitmapFactory.decodeResource(resources, resId);

    Bitmap.Config bitmapConfig = bitmap.getConfig();
    if (bitmapConfig == null)
        bitmapConfig = Bitmap.Config.ARGB_8888;
    bitmap = bitmap.copy(bitmapConfig, true);

    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(context.getResources().getColor(android.R.color.white));
    paint.setTypeface(Typeface.defaultFromStyle(Typeface.BOLD));
    paint.setTextSize((int) (12 * scale));

    Rect bounds = new Rect();
    paint.getTextBounds(text, 0, text.length(), bounds);
    int x = (bitmap.getWidth() - bounds.width()) / 4;
    int y = (bitmap.getHeight() + bounds.height()) / 5;

    canvas.drawText(text, x * scale, y * scale, paint);

    return bitmap;
}

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From source file:Main.java

public static Bitmap drawTextToBitmap(Context mContext, int resourceId, String mText) {
    try {//  w  w  w  . j  av  a  2s  . co  m
        Resources resources = mContext.getResources();
        float scale = resources.getDisplayMetrics().density;
        Bitmap bitmap = BitmapFactory.decodeResource(resources, resourceId);

        android.graphics.Bitmap.Config bitmapConfig = bitmap.getConfig();
        // set default bitmap config if none
        if (bitmapConfig == null) {
            bitmapConfig = android.graphics.Bitmap.Config.ARGB_8888;
        }
        // resource bitmaps are imutable,
        // so we need to convert it to mutable one
        bitmap = bitmap.copy(bitmapConfig, true);

        Canvas canvas = new Canvas(bitmap);
        // new antialised Paint
        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        // text color - #3D3D3D
        paint.setColor(Color.rgb(77, 77, 77));
        // text size in pixels
        paint.setTextSize((int) (13 * scale));
        // text shadow
        paint.setShadowLayer(1f, 0f, 1f, Color.DKGRAY);

        // draw text to the Canvas center
        Rect bounds = new Rect();
        paint.getTextBounds(mText, 0, mText.length(), bounds);
        int x = (int) ((bitmap.getWidth() - bounds.width()) / 4);
        int y = (int) ((bitmap.getHeight() + bounds.height()) / 4);

        canvas.drawText(mText, x * scale, y * scale, paint);

        return bitmap;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;

}

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From source file:android.support.v17.leanback.app.ErrorSupportFragment.java

private static FontMetricsInt getFontMetricsInt(TextView textView) {
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setTextSize(textView.getTextSize());
    paint.setTypeface(textView.getTypeface());
    return paint.getFontMetricsInt();
}

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From source file:Main.java

/**
 * The most useful answer about text drawing ever. http://stackoverflow.com/a/32081250
 *///  w w  w  .  j a  va 2s.co  m
@Nullable
public static Bitmap createTypefaceBitmap(final Context context, @NonNull final String text, final int color,
        final float textSizePx) {
    final Typeface robotoMedium = Typeface.createFromAsset(context.getAssets(), "fonts/Roboto-Medium.ttf");

    final Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setSubpixelText(true);
    paint.setTypeface(robotoMedium);
    paint.setStyle(Paint.Style.FILL);
    paint.setColor(color);
    paint.setTextSize(textSizePx);

    final Rect bounds = new Rect();
    paint.getTextBounds(text, 0, text.length(), bounds);

    Bitmap bitmap = null;
    if (!bounds.isEmpty()) {
        final int width = bounds.width();
        final int height = bounds.height();

        bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_4444);

        final float x = bounds.left;
        final float y = height - bounds.bottom;

        final Canvas canvas = new Canvas(bitmap);
        canvas.drawText(text, x, y, paint);
    }

    return bitmap;
}

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From source file:Main.java

public static Bitmap getTextImage(String text, float size, int width, int height) {
    final Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    final Paint paint = new Paint();
    final Canvas canvas = new Canvas(bmp);

    canvas.drawColor(Color.WHITE);

    paint.setColor(Color.BLACK);/*from  www. ja v  a  2 s  .  co  m*/
    paint.setStyle(Style.FILL);
    paint.setAntiAlias(true);
    paint.setTextAlign(Align.CENTER);
    paint.setTextSize(size);
    paint.setTypeface(Typeface.DEFAULT);
    canvas.drawText(text, width / 2, height / 2, paint);

    return bmp;
}

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From source file:Main.java

public static void calculateOKTextSize(Paint paint, float stripeWidth, String[] text) {
    float minTextSize = 1000;
    for (int i = 0; i < text.length; ++i) {
        float currSize = setTextSizeForWidth(paint, stripeWidth, text[i]);
        if (currSize < minTextSize)
            minTextSize = currSize;//from w  w  w .j a  v a  2  s .  c om
    }
    paint.setTextSize(minTextSize);
}

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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 ww  w  .  j  a va2  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;
}

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From source file:Main.java

public static byte[] makeFontBitmap(String font, String code, int size, float[] arrayOfPos) {
    Canvas c = new Canvas();
    Paint p = new Paint();
    float density = context.getResources().getDisplayMetrics().density;
    //        Log.v(TAG, String.format("makeFontBitmap called(Java): font=%s code=%s density=%f", font, code, density));
    p.setTextSize((float) size * density);
    p.setAntiAlias(true);/*w w  w  .  j  a va  2s  .  c  o  m*/

    Rect textBounds = new Rect();
    p.getTextBounds(code, 0, code.length(), textBounds);
    //        Log.v(TAG, String.format("makeFontBitmap textBounds: %d,%d,%d,%d", textBounds.left, textBounds.top, textBounds.right, textBounds.bottom));

    Rect textBoundsAxA = new Rect();
    String axa = String.format("A%sA", code);
    p.getTextBounds(axa, 0, axa.length(), textBoundsAxA);
    Rect textBoundsAA = new Rect();
    String aa = "AA";
    p.getTextBounds(aa, 0, aa.length(), textBoundsAA);

    // cache.distDelta = Vec2(0, 0);
    arrayOfPos[0] = textBounds.left;
    arrayOfPos[1] = textBounds.top;

    // cache.srcWidth = Vec2(16, 16);
    arrayOfPos[2] = textBounds.width();
    arrayOfPos[3] = textBounds.height();

    // cache.step = 16;
    //      arrayOfPos[4] = textBounds.width() + 1;
    arrayOfPos[4] = textBoundsAxA.width() - textBoundsAA.width();

    if (textBounds.width() == 0 || textBounds.height() == 0) {
        Log.v(TAG, "makeFontBitmap: empty");
        return null;
    }

    Bitmap b = Bitmap.createBitmap(textBounds.width(), textBounds.height(), Bitmap.Config.ARGB_8888);
    c.setBitmap(b);

    Rect r = new Rect(0, 0, textBounds.width(), textBounds.height());
    //      p.setColor(Color.RED);
    p.setARGB(0, 0, 0, 0);
    c.drawRect(r, p);
    p.setARGB(255, 255, 255, 255);

    //        Log.v(TAG, "makeFontBitmap: drawText");
    c.drawText(code, -textBounds.left, -textBounds.top, p);
    //        Log.v(TAG, String.format("makeFontBitmap: w=%.2f h=%.2f", arrayOfPos[2], arrayOfPos[3]));

    ByteBuffer buf = ByteBuffer.allocate(textBounds.width() * textBounds.height() * 4);
    //        Log.v(TAG, String.format("makeFontBitmap: b.getRowBytes() %d", b.getRowBytes()));
    buf.position(0);
    b.copyPixelsToBuffer(buf);
    //        Log.v(TAG, String.format("makeFontBitmap results: capacity=%d", buf.capacity()));

    return buf.array();
}

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From source file:Main.java

public static byte[] makeFontBitmap(String font, String code, int size, float[] arrayOfPos) {
    Log.v(TAG, String.format("makeFontBitmap called(Java): font=%s code=%s", font, code));
    Canvas c = new Canvas();
    Paint p = new Paint();
    //        Log.v(TAG, "get density");
    float density = context.getResources().getDisplayMetrics().density;
    Log.v(TAG, String.format("makeFontBitmap density: %f", density));
    p.setTextSize((float) size * density);
    p.setAntiAlias(true);//from ww  w .j  a  v  a  2  s. c o m

    Rect textBounds = new Rect();
    p.getTextBounds(code, 0, code.length(), textBounds);
    Log.v(TAG, String.format("makeFontBitmap textBounds: %d,%d,%d,%d", textBounds.left, textBounds.top,
            textBounds.right, textBounds.bottom));

    Rect textBoundsAxA = new Rect();
    String axa = String.format("A%sA", code);
    p.getTextBounds(axa, 0, axa.length(), textBoundsAxA);
    Rect textBoundsAA = new Rect();
    String aa = "AA";
    p.getTextBounds(aa, 0, aa.length(), textBoundsAA);

    // cache.distDelta = Vec2(0, 0);
    arrayOfPos[0] = textBounds.left;
    arrayOfPos[1] = textBounds.top;

    // cache.srcWidth = Vec2(16, 16);
    arrayOfPos[2] = textBounds.width();
    arrayOfPos[3] = textBounds.height();

    // cache.step = 16;
    //      arrayOfPos[4] = textBounds.width() + 1;
    arrayOfPos[4] = textBoundsAxA.width() - textBoundsAA.width();

    if (textBounds.width() == 0 || textBounds.height() == 0) {
        Log.v(TAG, "makeFontBitmap: empty");
        return null;
    }

    Bitmap b = Bitmap.createBitmap(textBounds.width(), textBounds.height(), Bitmap.Config.ARGB_8888);
    c.setBitmap(b);

    Rect r = new Rect(0, 0, textBounds.width(), textBounds.height());
    //      p.setColor(Color.RED);
    p.setARGB(0, 0, 0, 0);
    c.drawRect(r, p);
    p.setARGB(255, 255, 255, 255);

    //        Log.v(TAG, "makeFontBitmap: drawText");
    c.drawText(code, -textBounds.left, -textBounds.top, p);
    Log.v(TAG, String.format("makeFontBitmap: w=%.2f h=%.2f", arrayOfPos[2], arrayOfPos[3]));

    ByteBuffer buf = ByteBuffer.allocate(textBounds.width() * textBounds.height() * 4);
    //      ByteBuffer buf = ByteBuffer.allocate(b.getRowBytes());
    Log.v(TAG, String.format("makeFontBitmap: b.getRowBytes() %d", b.getRowBytes()));
    buf.position(0);
    b.copyPixelsToBuffer(buf);
    Log.v(TAG, String.format("makeFontBitmap results: capacity=%d", buf.capacity()));

    //      byte bytes[] = buf.array();
    //      for (int i = 0; i < size * size * 2; i++)
    //         bytes[i] = (byte)(Math.random() * 255);
    return buf.array();
}

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From source file:com.metinkale.prayerapp.vakit.WidgetService.java

private static Bitmap getIconFromMinutes(long left) {
    String text = left + "";
    Resources r = App.getContext().getResources();
    int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 32, r.getDisplayMetrics());
    Bitmap b = Bitmap.createBitmap(px, px, Bitmap.Config.ARGB_4444);
    Canvas c = new Canvas(b);
    Paint paint = new Paint();
    final float testTextSize = 48f;
    paint.setTextSize(testTextSize);
    Rect bounds = new Rect();
    paint.getTextBounds(text.length() == 1 ? "0" + text : text, 0, text.length() == 1 ? 2 : text.length(),
            bounds);// w ww .  j  a v  a  2s . co  m
    float desiredTextSize = testTextSize * (px * 0.9f) / bounds.width();
    paint.setTextSize(desiredTextSize);
    paint.setColor(0xFFFFFFFF);
    paint.setTextAlign(Paint.Align.CENTER);
    int yPos = (int) ((c.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
    c.drawText(text, px / 2, yPos, paint);
    c.drawText(text, px / 2, yPos, paint);
    return b;
}

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