android.text.TextPaint#setAlpha

Source File: LatinKeyboard.java From hackerskeyboard with Apache License 2.0

6 votes

public SlidingLocaleDrawable(Drawable background, int width, int height) {
    mBackground = background;
    setDefaultBounds(mBackground);
    mWidth = width;
    mHeight = height;
    mTextPaint = new TextPaint();
    mTextPaint.setTextSize(getTextSizeFromTheme(android.R.style.TextAppearance_Medium, 18));
    mTextPaint.setColor(mRes.getColor(R.color.latinkeyboard_transparent));
    mTextPaint.setTextAlign(Align.CENTER);
    mTextPaint.setAlpha(OPACITY_FULLY_OPAQUE);
    mTextPaint.setAntiAlias(true);
    mMiddleX = (mWidth - mBackground.getIntrinsicWidth()) / 2;
    mLeftDrawable =
            mRes.getDrawable(R.drawable.sym_keyboard_feedback_language_arrows_left);
    mRightDrawable =
            mRes.getDrawable(R.drawable.sym_keyboard_feedback_language_arrows_right);
    mThreshold = ViewConfiguration.get(mContext).getScaledTouchSlop();
}

Source File: MaterialDrawable.java From material-design-icons-for-android with Apache License 2.0

6 votes

public void setProperties(){
 	paint = new TextPaint();
 	if (theme < 0) {
     	getThemeIconColor();
     }
 	try {
 		paint.setTypeface(MaterialIcon.getTypeface(context));
 	} catch (Exception e) {
	e.printStackTrace();
}
 	paint.setStyle(Paint.Style.STROKE);
 	paint.setTextAlign(Paint.Align.CENTER);
 	paint.setUnderlineText(false);
 	paint.setColor(color);
 	paint.setAlpha(alpha);
 	paint.setAntiAlias(true);
 }

Source File: AlphaSpan.java From styT with Apache License 2.0

5 votes

@Override
public void updateDrawState(@NonNull TextPaint paint)
{
    paint.setAlpha((int) (paint.getAlpha() * mValue));
    paint.bgColor = Color.argb((int) (Color.alpha(paint.bgColor) * mValue),
            Color.red(paint.bgColor), Color.green(paint.bgColor), Color.blue(paint.bgColor));
}

Source File: SimpleTextCacheStuffer.java From DanDanPlayForAndroid with MIT License

5 votes

protected void drawText(BaseDanmaku danmaku, String lineText, Canvas canvas, float left, float top, TextPaint paint, boolean fromWorkerThread) {
    if (fromWorkerThread && danmaku instanceof SpecialDanmaku) {
        paint.setAlpha(255);
    }
    if (lineText != null) {
        canvas.drawText(lineText, left, top, paint);
    } else {
        canvas.drawText(danmaku.text.toString(), left, top, paint);
    }
}

Source File: AlphaSpan.java From MaterialTapTargetPrompt with Apache License 2.0

5 votes

@Override
public void updateDrawState(@NonNull TextPaint paint)
{
    paint.setAlpha((int) (paint.getAlpha() * mValue));
    paint.bgColor = Color.argb((int) (Color.alpha(paint.bgColor) * mValue),
            Color.red(paint.bgColor), Color.green(paint.bgColor), Color.blue(paint.bgColor));
}

Source File: AlphaSpanUnitTest.java From MaterialTapTargetPrompt with Apache License 2.0

5 votes

@Test
public void testAlphaSpan()
{
    final AlphaSpan alphaSpan = new AlphaSpan(0.5f);
    final TextPaint textPaint = new TextPaint();
    textPaint.setAlpha(200);
    textPaint.bgColor = Color.argb(100, 100, 100, 100);
    alphaSpan.updateDrawState(textPaint);
    assertEquals(100, textPaint.getAlpha());
    assertEquals(Color.argb(50, 100, 100, 100), textPaint.bgColor);
}

Source File: PasswordEntry.java From android-proguards with Apache License 2.0

5 votes

/**
 * Progress through the morph:  0 = character, 1 = •
 */
void draw(Canvas canvas, TextPaint paint, CharSequence password,
          int index, float charWidth, float progress) {
    int alpha = paint.getAlpha();
    float x = charWidth * index;

    // draw the character
    canvas.save();
    float textScale = lerp(1f, textToMaskScale, progress);
    // scale character: shrinks to/grows from the mask's height
    canvas.scale(textScale, textScale, x + bounds.exactCenterX(), bounds.exactCenterY());
    // cross fade between the character/mask
    paint.setAlpha((int) lerp(alpha, 0, progress));
    // vertically move the character center toward/from the mask center
    canvas.drawText(password, index, index + 1,
            x, lerp(0f, textOffsetY, progress) / textScale, paint);
    canvas.restore();

    // draw the mask
    canvas.save();
    float maskScale = lerp(maskToTextScale, 1f, progress);
    // scale the mask: down from/up to the character width
    canvas.scale(maskScale, maskScale, x + bounds.exactCenterX(), bounds.exactCenterY());
    // cross fade between the mask/character
    paint.setAlpha((int) AnimUtils.lerp(0, alpha, progress));
    // vertically move the mask center from/toward the character center
    canvas.drawText(PASSWORD_MASK, 0, 1, x, -lerp(textOffsetY, 0f, progress), paint);
    canvas.restore();

    // restore the paint to how we found it
    paint.setAlpha(alpha);
}

Source File: VoIPActivity.java From TelePlus-Android with GNU General Public License v2.0

4 votes

@Override
public void updateDrawState(TextPaint tp){
    tp.setAlpha(alpha);
}

Source File: WaterMarkTextUtil.java From imsdk-android with MIT License

4 votes

/**
 * 生成水印文字图片
 */
public BitmapDrawable drawTextToBitmap(Context mContext, String gText) {

    try {
        TextPaint mTextPaint1 = new TextPaint(Paint.ANTI_ALIAS_FLAG);
        mTextPaint1.density = mContext.getResources().getDisplayMetrics().density;
        oneTextPx = Utils.sp2px(mContext, textSize);
        mTextPaint1.setTextSize(oneTextPx);
        //计算字长
        textLength = (int) mTextPaint1.measureText(gText);
        int stextLength = (int) mTextPaint1.measureText(sText);
        /**拿到字长之后，计算一下斜着显示文字的时候文字所占的长和高*/
        int witchPx = 0;
        int highPx = 0;
        /**默认一段文字的长和高计算*/
        if (sWitchPx == 0) {
            sWitchPx = measurementWitch(stextLength);
            sHigthPx = measurementHigth(stextLength);
        }
        /**传入的文字的长和高计算*/
        witchPx = measurementWitch(textLength);
        highPx = measurementHigth(textLength);
        /**计算显示完整所需占的画图长宽*/
        int bitmapWitch = witchPx + sWitchPx + 2 * oneTextPx + offset;
        int bitmaphigth = (highPx + oneTextPx) * 2;
        //设置画板的时候 增加一个字的长宽
        bitmap = Bitmap.createBitmap(bitmapWitch + right,
                bitmaphigth+(2*top), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        canvas.drawColor(ContextCompat.getColor(mContext, R.color.atom_ui_chat_gray_bg));
        /**初始化画笔*/
        TextPaint mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
        mTextPaint.density = mContext.getResources().getDisplayMetrics().density;
        mTextPaint.setColor(Color.parseColor("#C4C4C4"));
        mTextPaint.setAlpha(90);
        mTextPaint.setStyle(Paint.Style.FILL);
        mTextPaint.setAntiAlias(true);
        mTextPaint.setTextAlign(Paint.Align.LEFT);
        mTextPaint.setFakeBoldText(false);
        mTextPaint.setTextSkewX(0);
        mTextPaint.setTextSize(oneTextPx);
        /**
         * ——————————————————————————————————>
         * |    1号绘制区域    |  间  |  2号   |
         * |   gText         |      | appName |
         * |  ①号起点位置     |  隔  |  ②起   |
         * ———————————————————————————————————
         * | 3号      | 间   |   4号绘制区域    |
         * | appName   |      |   gText        |
         * |  ③起     | 隔   |   ④号起        |
         * |———————————————————————————————————
         * V
         */
        /**方式二利用画布平移和旋转绘制*/
        /**先移动到①起点位置*/
        canvas.translate(oneTextPx,highPx+oneTextPx+top);
        /**旋转一定度数 绘制文字*/
        canvas.rotate(-rotate);
        canvas.drawText(gText,0,0,mTextPaint);
        /**恢复原来的度数 再移动画布原点到②号位置*/
        canvas.rotate(rotate);
        canvas.translate(witchPx+offset+oneTextPx,0);
        /**旋转一定度数 绘制文字*/
        canvas.rotate(-rotate);
        canvas.drawText(sText,0,0,mTextPaint);
        /**恢复原来的度数 再移动画布原点到③号位置*/
        canvas.rotate(rotate);
        canvas.translate(-(witchPx+offset+oneTextPx),oneTextPx+highPx+top);
        /**旋转一定度数 绘制文字*/
        canvas.rotate(-rotate);
        canvas.drawText(sText,0,0,mTextPaint);
        /**恢复原来的度数 再移动画布原点到④号位置*/
        canvas.rotate(rotate);
        canvas.translate(sWitchPx+offset+oneTextPx,0);
        /**旋转一定度数 绘制文字*/
        canvas.rotate(-rotate);
        canvas.drawText(gText,0,0,mTextPaint);
        /**保存画布*/
        canvas.save(Canvas.ALL_SAVE_FLAG);
        canvas.restore();
        //生成平铺的bitmapDrawable
        BitmapDrawable drawable = new BitmapDrawable(mContext.getResources(), bitmap);
        drawable.setTileModeXY(Shader.TileMode.REPEAT, Shader.TileMode.REPEAT);
        drawable.setDither(true);
        return drawable;
    } catch (Exception e) {

    }
    return null;

}

Source File: Clock.java From Clock-view with Apache License 2.0

4 votes

private void drawHoursValues(Canvas canvas) {

        if (!showHoursValues)
            return;

        Rect rect = new Rect();

        TextPaint textPaint = new TextPaint();
        textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
        textPaint.setAntiAlias(true);
        textPaint.setColor(this.valuesColor);
        textPaint.setTypeface(this.valuesFont);
        textPaint.setTextSize(size * DEFAULT_HOURS_VALUES_TEXT_SIZE);

        float degreeSpace = 0f;
        if (showDegrees)
            degreeSpace = DEFAULT_DEGREE_STROKE_WIDTH + 0.06f;

        int rText = (int) (centerX - (size * DEFAULT_HOURS_VALUES_TEXT_SIZE) - (size * degreeSpace));

        for (int i = FULL_ANGLE; i > 0; i = i - valueStep.getId()) {

            int value = i / 30;
            String formatted;
            switch (valueType) {

                case roman:
                    formatted = ClockUtils.toRoman(value);
                    break;

                case arabic:
                    formatted = ClockUtils.toArabic(value);
                    break;

                default:
                    formatted = String.format(Locale.getDefault(), "%02d", value);
                    break;
            }

            if (valueDisposition.getId() == 0) {
                if ((i % REGULAR_ANGLE) == 0) {
                    textPaint.setTextSize(size * DEFAULT_HOURS_VALUES_TEXT_SIZE);
                    textPaint.setAlpha(FULL_ALPHA);
                } else {
                    textPaint.setTextSize(size * (DEFAULT_HOURS_VALUES_TEXT_SIZE - 0.03f));
                    textPaint.setAlpha(CUSTOM_ALPHA);
                }
            } else {
                textPaint.setTextSize(size * DEFAULT_HOURS_VALUES_TEXT_SIZE);
                textPaint.setAlpha(FULL_ALPHA);
            }


            int textX = (int) (centerX + rText * Math.cos(Math.toRadians(REGULAR_ANGLE - i)));
            int textY = (int) (centerX - rText * Math.sin(Math.toRadians(REGULAR_ANGLE - i)));
            textPaint.getTextBounds(formatted, 0, formatted.length(), rect);
            canvas.drawText(formatted, textX - rect.width() / formatted.length(), textY + rect.height() / formatted.length(), textPaint);
        }

    }

Source File: VoIPActivity.java From TelePlus-Android with GNU General Public License v2.0

4 votes

@Override
public void updateDrawState(TextPaint tp){
    tp.setAlpha(alpha);
}

Source File: BitmapUtils.java From AndroidWM with Apache License 2.0

4 votes

/**
 * build a bitmap from a text.
 *
 * @return {@link Bitmap} the bitmap return.
 */
public static Bitmap textAsBitmap(Context context, WatermarkText watermarkText) {
    TextPaint watermarkPaint = new TextPaint();
    watermarkPaint.setColor(watermarkText.getTextColor());
    watermarkPaint.setStyle(watermarkText.getTextStyle());

    if (watermarkText.getTextAlpha() >= 0 && watermarkText.getTextAlpha() <= 255) {
        watermarkPaint.setAlpha(watermarkText.getTextAlpha());
    }

    float value = (float) watermarkText.getTextSize();
    int pixel = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
            value, context.getResources().getDisplayMetrics());
    watermarkPaint.setTextSize(pixel);

    if (watermarkText.getTextShadowBlurRadius() != 0
            || watermarkText.getTextShadowXOffset() != 0
            || watermarkText.getTextShadowYOffset() != 0) {
        watermarkPaint.setShadowLayer(watermarkText.getTextShadowBlurRadius(),
                watermarkText.getTextShadowXOffset(),
                watermarkText.getTextShadowYOffset(),
                watermarkText.getTextShadowColor());
    }

    if (watermarkText.getTextFont() != 0) {
        Typeface typeface = ResourcesCompat.getFont(context, watermarkText.getTextFont());
        watermarkPaint.setTypeface(typeface);
    }

    watermarkPaint.setAntiAlias(true);
    watermarkPaint.setTextAlign(Paint.Align.LEFT);
    watermarkPaint.setStrokeWidth(5);

    float baseline = (int) (-watermarkPaint.ascent() + 1f);
    Rect bounds = new Rect();
    watermarkPaint.getTextBounds(watermarkText.getText(),
            0, watermarkText.getText().length(), bounds);

    int boundWidth = bounds.width() + 20;
    int mTextMaxWidth = (int) watermarkPaint.measureText(watermarkText.getText());
    if (boundWidth > mTextMaxWidth) {
        boundWidth = mTextMaxWidth;
    }
    StaticLayout staticLayout = new StaticLayout(watermarkText.getText(),
            0, watermarkText.getText().length(),
            watermarkPaint, mTextMaxWidth, android.text.Layout.Alignment.ALIGN_NORMAL, 2.0f,
            2.0f, false);

    int lineCount = staticLayout.getLineCount();
    int height = (int) (baseline + watermarkPaint.descent() + 3) * lineCount;
    Bitmap image = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888);
    if (boundWidth > 0 && height > 0) {
        image = Bitmap.createBitmap(boundWidth, height, Bitmap.Config.ARGB_8888);
    }
    Canvas canvas = new Canvas(image);
    canvas.drawColor(watermarkText.getBackgroundColor());
    staticLayout.draw(canvas);
    return image;
}

Source File: VoIPActivity.java From Telegram-FOSS with GNU General Public License v2.0

4 votes

@Override
public void updateDrawState(TextPaint tp) {
    tp.setAlpha(alpha);
}

Source File: AlphaSpan.java From ifican with Apache License 2.0

4 votes

@Override
public void updateDrawState(TextPaint ds) {
    ds.setAlpha(mAlpha);
}

Source File: VoIPActivity.java From Telegram with GNU General Public License v2.0

4 votes

@Override
public void updateDrawState(TextPaint tp) {
    tp.setAlpha(alpha);
}

Java Code Examples for android.text.TextPaint#setAlpha()