Java Code Examples for android.view.View#setDrawingCacheQuality()

/**
 * 填充布局内容
 */
private static  Bitmap layoutView(final View viewBitmap, int width, int height) {
    // 整个View的大小 参数是左上角 和右下角的坐标
    viewBitmap.layout(0, 0, width, height);
    int measuredWidth = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
    int measuredHeight = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.UNSPECIFIED);
    viewBitmap.measure(measuredWidth, measuredHeight);
    viewBitmap.layout(0, 0, viewBitmap.getMeasuredWidth(), viewBitmap.getMeasuredHeight());
    viewBitmap.setDrawingCacheEnabled(true);
    viewBitmap.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
    viewBitmap.setDrawingCacheBackgroundColor(Color.WHITE);
    // 把一个View转换成图片
    Bitmap cachebmp = viewConversionBitmap(viewBitmap);
    viewBitmap.destroyDrawingCache();
    return cachebmp;
}
 

/**
 * 填充布局内容
 * @param viewBitmap            view
 * @param width                 宽
 * @param height                高
 * @return
 */
private static  Bitmap layoutView(final View viewBitmap, int width, int height) {
    // 整个View的大小 参数是左上角 和右下角的坐标
    viewBitmap.layout(0, 0, width, height);
    //宽，父容器已经检测出view所需的精确大小，这时候view的最终大小SpecSize所指定的值，相当于match_parent或指定具体数值。
    int measuredWidth = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
    //高，表示父容器不对View有任何限制，一般用于系统内部，表示一种测量状态；
    int measuredHeight = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.UNSPECIFIED);
    viewBitmap.measure(measuredWidth, measuredHeight);
    viewBitmap.layout(0, 0, viewBitmap.getMeasuredWidth(), viewBitmap.getMeasuredHeight());
    viewBitmap.setDrawingCacheEnabled(true);
    viewBitmap.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
    viewBitmap.setDrawingCacheBackgroundColor(Color.WHITE);
    // 把一个View转换成图片
    Bitmap cachebmp = viewConversionBitmap(viewBitmap);
    viewBitmap.destroyDrawingCache();
    return cachebmp;
}
 

public Bitmap createBitmap(final Context context, RemoteViews remoteViews, boolean isBig, boolean systemId) {
	View mCache = null;
	try {
		mCache = createView(context, remoteViews, isBig, systemId);
	} catch (Throwable throwable) {
		try {
			// apply失败后,根据布局id创建view
			mCache = LayoutInflater.from(context).inflate(remoteViews.getLayoutId(), null);
		} catch (Throwable e) {

		}
	}
	if (mCache == null) {
		return null;
	}
	mCache.setDrawingCacheEnabled(true);
	mCache.buildDrawingCache();
	mCache.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
	return mCache.getDrawingCache();
}
 

private Bitmap prepareAndSetBitmap(final View targetView) {
        targetView.setDrawingCacheEnabled(true);
        targetView.destroyDrawingCache();
        targetView.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_AUTO);
        targetView.buildDrawingCache(true);
        Bitmap sourceBitmap = Bitmap.createBitmap(targetView.getDrawingCache());
        targetView.setDrawingCacheEnabled(false);
        targetView.destroyDrawingCache();

        Bitmap overlay = Bitmap.createBitmap((int) (targetView.getMeasuredWidth() / scaleFactor),
                (int) (targetView.getMeasuredHeight() / scaleFactor), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(overlay);
//        canvas.translate(-targetView.getLeft() / scaleFactor, -targetView.getTop() / scaleFactor);
        canvas.scale(1 / scaleFactor, 1 / scaleFactor);
        Paint paint = new Paint();
        paint.setColor(Color.RED);
        paint.setFlags(Paint.FILTER_BITMAP_FLAG);
        canvas.drawBitmap(sourceBitmap, 0, 0, paint);
//        canvas.drawColor(Color.RED);
        sourceBitmap.recycle();
        return FastBlur.doBlur(overlay, radius, false);
    }
 

private Drawable buildCounterDrawable(int count, int backgroundImageId) {
    LayoutInflater inflater = LayoutInflater.from(this);
    View view = inflater.inflate(R.layout.notification_count_layout, null);
    view.setBackgroundResource(backgroundImageId);
    TextView tvCount = (TextView) view.findViewById(R.id.tvCount);
    if (count == 0) {
        tvCount.setVisibility(View.GONE);
    } else {
        tvCount.setVisibility(View.VISIBLE);
        tvCount.setText(String.valueOf(count));
    }

    view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
            View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
    view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());

    view.setDrawingCacheEnabled(true);
    view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
    Bitmap bitmap = Bitmap.createBitmap(view.getDrawingCache());
    view.setDrawingCacheEnabled(false);

    return new BitmapDrawable(getResources(), bitmap);
}
 

/**
 * Generates a screenshot of the specified `View`
 *
 * @param view the `View` component
 * @return the screenshot
 */
public static Bitmap getViewScreenshot(final View view) {
	// set up the drawing cache
	view.setDrawingCacheEnabled(true);
	view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);

	// get the screenshot
	final Bitmap viewScreenshot = view.getDrawingCache(true);
	final Bitmap output = viewScreenshot.copy(viewScreenshot.getConfig(), false);

	// disable the drawing cache again
	view.destroyDrawingCache();
	view.setDrawingCacheEnabled(false);

	return output;
}
 

/**
 * @return view的截图，在InVisible时也可以获取到bitmap
 */
public static Bitmap getViewBitmap(View view) {
    view.measure(View.MeasureSpec.makeMeasureSpec(view.getMeasuredWidth(), View.MeasureSpec.EXACTLY),
            View.MeasureSpec.makeMeasureSpec(view.getMeasuredHeight(), View.MeasureSpec.EXACTLY));
    view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
    view.setDrawingCacheEnabled(true);
    view.buildDrawingCache(true);
    return view.getDrawingCache(true);
}
 

/**
 * @return view的截图，在InVisible时也可以获取到bitmap
 */
public static Bitmap getViewBitmap(View view) {
    view.measure(View.MeasureSpec.makeMeasureSpec(view.getMeasuredWidth(), View.MeasureSpec.EXACTLY),
            View.MeasureSpec.makeMeasureSpec(view.getMeasuredHeight(), View.MeasureSpec.EXACTLY));
    view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
    view.setDrawingCacheEnabled(true);
    view.buildDrawingCache(true);
    return view.getDrawingCache(true);
}
 

public static Bitmap of(View view, BlurFactor factor) {
  view.setDrawingCacheEnabled(true);
  view.destroyDrawingCache();
  view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW);
  Bitmap cache = view.getDrawingCache();
  Bitmap bitmap = of(view.getContext(), cache, factor);
  cache.recycle();
  return bitmap;
}
 

public BlurTask(View target, BlurFactor factor, Callback callback) {
  target.setDrawingCacheEnabled(true);
  this.res = target.getResources();
  this.factor = factor;
  this.callback = callback;

  target.destroyDrawingCache();
  target.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW);
  capture = target.getDrawingCache();
  contextWeakRef = new WeakReference<>(target.getContext());
}
 

private static Bitmap takeSnapshot(View view) {
    view.setDrawingCacheEnabled(true);
    view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_AUTO);

    Bitmap snapshot = null;
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap != null) {
        snapshot = Bitmap.createBitmap(cacheBitmap);
        view.setDrawingCacheEnabled(false);
        view.destroyDrawingCache();
    }
    return snapshot;
}
 

public static Bitmap of(View view, BlurFactor factor) {
  view.setDrawingCacheEnabled(true);
  view.destroyDrawingCache();
  view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW);
  Bitmap cache = view.getDrawingCache();
  Bitmap bitmap = of(view.getContext(), cache, factor);
  cache.recycle();
  return bitmap;
}
 

public BlurTask(View target, BlurFactor factor, Callback callback) {
  this.res = target.getResources();
  this.factor = factor;
  this.callback = callback;
  this.contextWeakRef = new WeakReference<>(target.getContext());

  target.setDrawingCacheEnabled(true);
  target.destroyDrawingCache();
  target.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW);
  bitmap = target.getDrawingCache();
}
 

public static Bitmap of(View view, BlurFactor factor) {
  view.setDrawingCacheEnabled(true);
  view.destroyDrawingCache();
  view.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW);
  Bitmap cache = view.getDrawingCache();
  Bitmap bitmap = of(view.getContext(), cache, factor);
  cache.recycle();
  return bitmap;
}
 

public BlurTask(View target, BlurFactor factor, Callback callback) {
  target.setDrawingCacheEnabled(true);
  this.res = target.getResources();
  this.factor = factor;
  this.callback = callback;

  target.destroyDrawingCache();
  target.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW);
  capture = target.getDrawingCache();
  contextWeakRef = new WeakReference<>(target.getContext());
}