都是修改framework下面的文件：
1、com.Android.internal.policy.impl.GlobalActions
在items中添加如下参考代码,表示在系统power菜单中添加一个“重启”选项以及响应reboot事件：
new SinglePressAction( com.android.internal.R.drawable.ic_lock_power_off, R.string.global_action_power_reboot) { public void onPress() { ShutdownThread.reboot(mContext, null, true); } public boolean showDuringKeyguard() { return true; } public boolean showBeforeProvisioning() { return true; } });2、 在com.android.internal.app.ShutdownThread类中添加相应的重启reboot处理事件。
类似于下面的代码：
/** * Request a clean shutdown, waiting for subsystems to clean up their * state etc. Must be called from a Looper thread in which its UI * is shown. * * @param context Context used to display the shutdown progress dialog. * @param confirm true if user confirmation is needed before shutting down. * @param isReboot true if user confirmation is needed reboot and not shutdown. */ public static void shutdown(final Context context, boolean confirm,boolean isReboot) { mReboot = isReboot ; // ensure that only one thread is trying to power down. // any additional calls are just returned synchronized (sIsStartedGuard) { if (sIsStarted) { Log.d(TAG, "Request to shutdown already running, returning."); return; } } Log.d(TAG, "Notifying thread to start radio shutdown"); if (confirm) { final AlertDialog dialog = new AlertDialog.Builder(context) .setIcon(android.R.drawable.ic_dialog_alert) .setTitle(mReboot?com.android.internal.R.string.global_action_power_reboot:com.android.internal.R.string.global_action_power_off) .setMessage(mReboot?com.android.internal.R.string.reboot_confirm:com.android.internal.R.string.shutdown_confirm) .setPositiveButton(com.android.internal.R.string.yes, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { beginShutdownSequence(context); } }) .setNegativeButton(com.android.internal.R.string.no, null) .create(); dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG); if (!context.getResources().getBoolean( com.android.internal.R.bool.config_sf_slowBlur)) { dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND); } dialog.show(); } else { beginShutdownSequence(context); } }