android 装配app私有存储目录下的apk

android 安装app私有存储目录下的apk
一般安装app就是

Intent i = new Intent(Intent.ACTION_VIEW);// i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);i.setDataAndType(Uri.parse("file://" + mFilePath),"application/vnd.android.package-archive");mContext.startActivity(i);

String cmd = "chmod 777 " + mFilePath;try {Runtime.getRuntime().exec(cmd);} catch (Exception e) {e.printStackTrace();}