android 常用代码

让一个图片透明：

Bitmap buffer = Bitmap.createBitmap(width, border="1" Height, Bitmap.Config.ARGB_4444);buffer.eraseColor(Color.TRANSPARENT);

程序控制屏幕变亮：

WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.screenBrightness = 100 / 100 .0f;
getWindow().setAttributes(lp);

过滤特定文本

Filter filter = myAdapter.getFilter();
filter.filter(mySearchText);