清理缓存
获取缓存大小：http://hsx9566.iteye.com/blog/997879
http://www.eoeandroid.com/thread-103107-1-1.html
http://bbs.51cto.com/viewthread.php?tid=1034446&page=
pm命令找到包
将Activity设置为Dialog
1设置theme Theme.Dialog
2改变Window大小getWindow().setAttributes(p);
注意：在style中设置width,height总是和设想不一致
am start -n com.huawei.cleardatadialog/com.huawei.cleardatadialog.ClearUserdataActivity
grep -nsr --color "BluetoothAdapter.ACTION_STATE_CHANGED " ./