以编程方式重启设备 [英] Restarting a device programmatically

问题描述

在我的android应用程序中，我想在单击按钮时重启我的android设备. 但它不起作用.
到目前为止，我已经做到了.

In my android application, I want to restart my android device on button click. But its not working.
I have done this so far.

ImageButton restartmob = (ImageButton) this.findViewById(R.id.restartmob);
    restartmob.setOnClickListener(new ImageButton.OnClickListener() {
        @Override
        public void onClick(View v) {
            Process proc = null;            
            try {
               //proc = Runtime.getRuntime().exec(new String[] { "su", "-c", "reboot" });
                 proc = Runtime.getRuntime().exec(new String[]{"/system/bin/su","-c","reboot now"});
                proc.waitFor();
            } catch (Exception ex) {
                Log.i(TAG, "Could not reboot", ex);
            }
        }
    });

我还要在清单文件中添加以下权限.

Also I put the following permission in the manifest file.

<permission android:name="android.permission.REBOOT"/>

单击图像按钮重新启动时，出现以下异常.

When I clicked the image button to restart, I got the following exception.

java.io.IOException: Error running exec(). Command: [/system/bin/su, -c, reboot now] 
Working Directory: null Environment: null   
at java.lang.ProcessManager.exec(ProcessManager.java:211)   
at java.lang.Runtime.exec(Runtime.java:173)
at java.lang.Runtime.exec(Runtime.java:128)
at com.android.onlinepayment.activity.SystemSubMenuActivity$1.onClick(SystemSubMenuActivity.java:49)
at android.view.View.performClick(View.java:5184)   
at android.view.View$PerformClick.run(View.java:20910)  
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)    
at java.lang.reflect.Method.invoke(Native Method)   
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388  
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
Caused by: java.io.IOException: No such file or directory   
at java.lang.ProcessManager.exec(Native Method)
at java.lang.ProcessManager.exec(ProcessManager.java:209)
... 13 more

我的代码有什么问题?请帮助我.
对于信息，我正在android Lollipop上进行测试(如果有问题的话).
预先感谢.

What's wrong with my code? Please help me on this.
For the info, I am testing on android Lollipop (if it matters).
Thanks in Advance.

推荐答案

您所需的权限与您的重新启动方法无关，因为您的方法需要带root权限的电话(带有su).要重新启动电话，请像您一样获得权限，但是请致电 PowerManager#reboot .

The permission you required is not related to your reboot method, as your method requires a rooted phone (with su). To reboot the phone, require the permission as you did, but call PowerManager#reboot.

PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
pm.reboot(null);

这篇关于以编程方式重启设备的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！