getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); //隐藏状态栏 
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); //显示状态栏

requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏 

// 获取屏幕 
 View dView = getWindow().getDecorView(); 
 dView.setDrawingCacheEnabled(true); 
 dView.buildDrawingCache(); 
 Bitmap temBitmap = dView.getDrawingCache(); 

Bitmap bitmap = Bitmap.createBitmap(bitmap,0,0,width,height); 

/** 
 * 显示隐藏状态栏，全屏不变，只在有全屏时有效 
 * @param enable 
 */
private void setStatusBarVisibility(boolean enable) {
 WindowManager.LayoutParams lp = getWindow().getAttributes();
 if (enable) {
 lp.flags |= WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN;
 } else {
 lp.flags &= (~WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
 }
 getWindow().setAttributes(lp);
 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}
/**
 * 设置是否全屏
 * @param enable
 */
private void setFullScreen(boolean enable) {
 WindowManager.LayoutParams lp = getWindow().getAttributes();
 if (enable) {
 lp.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
 } else {
 lp.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
 }
 getWindow().setAttributes(lp);
 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}