MTK增加重启功能-优快云博客

本文介绍了Android系统中重启流程的具体实现方式。重点展示了如何通过ShutdownThread类的reboot方法进行设备重启，并展示了确认对话框的创建过程及不同行为配置下系统的响应机制。

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\frameworks\base\services\java\com\android\server\power\ShutdownThread.java

public static void reboot(final Context context, boolean confirm) {

    synchronized (sIsStartedGuard) {
            if (sIsStarted) {
                Log.d(TAG, "Request to shutdown already running, returning.");
                return;
            }
        }

final int longPressBehavior = context.getResources().getInteger(
com.android.internal.R.integer.config_longPressOnPowerBehavior);

final int resourceId = longPressBehavior == 2
? com.android.internal.R.string.restart_confirm_question
: com.android.internal.R.string.restart_confirm;

Log.d(TAG, "Notifying thread to start shutdown longPressBehavior=" + longPressBehavior);

   if (confirm) {
            final CloseDialogReceiver closer = new CloseDialogReceiver(context);
            final AlertDialog dialog = new AlertDialog.Builder(context).setTitle(com.android.internal.R.string.global_action_power_restart)..setMessage(resourceId)..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();

            closer.dialog = dialog;
            dialog.setOnDismissListener(closer);
            dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
            dialog.show();}else {
            beginShutdownSequence(context);
           }

}

frameworks\base\policy\src\com\android\internal\policy\impl\GlobalActions.java

private AlertDialog createDialog() {

......

mItems.add( new SinglePressAction(
com.android.internal.R.drawable.ic_lock_power_off,
R.string.global_action_power_restart){ public void onPress() {ShutdownThread.reboot(mContext, null,true);}

public boolean showDuringKeyguard() {return true;}

public boolean showBeforeProvisioning() {return true; }});

}

转载于:https://my.oschina.net/poineer/blog/162997