android View 转Bitmap
/** * added by yangguangfu Draw the view into a bitmap. */ private Bitmap getViewBitmap(View v) { Bitmap bitmap=null; if(v!=null){ v.clearFocus(); v.setPressed(false); boolean willNotCache = v.willNotCacheDrawing(); v.setWillNotCacheDrawing(false); // Reset the drawing cache background color to fully transparent // for the duration of this operation int color = v.getDrawingCacheBackgroundColor(); v.setDrawingCacheBackgroundColor(0); float alpha = v.getAlpha(); v.setAlpha(1.0f); if (color != 0) { v.destroyDrawingCache(); } v.buildDrawingCache(); Bitmap cacheBitmap = v.getDrawingCache(); if (cacheBitmap == null) { Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException()); return null; } bitmap = Bitmap.createBitmap(cacheBitmap); // Restore the view v.destroyDrawingCache(); v.setAlpha(alpha); v.setWillNotCacheDrawing(willNotCache); v.setDrawingCacheBackgroundColor(color); } return bitmap; } 1 楼 hoyee1223 2011-09-16 v.getAlpha();