Android 实现关机的多种方式

try {
    Runtime.getRuntime().exec("reboot -p"); //关机
} catch (ioException e) {
    e.printStackTrace();
}

try {
    PowerManager pManager = (PowerManager) VfiServiceApp.getContext().getSystemService(Context.POWER_SERVICE);
    if (pManager != null) {
        Method method = pManager.getClass().getMethod("shutdown", boolean.class, String.class, boolean.class);
        method.invoke(pManager, false, null, false);
    }
} catch (Exception e) {
    e.printStackTrace();
}

public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN"
public static final String ACTION_REBOOT = "android.intent.action.REBOOT"

LOCAL_PATH:= $(call my-dir)  
include $(CLEAR_VARS)  
LOCAL_MODULE_TAGS := optional  
LOCAL_SRC_FILES := $(call all-java-files-under, src)  
LOCAL_PACKAGE_NAME := PowerActionDemo  
LOCAL_CERTIFICATE := platfORM  
include $(BUILD_PACKAGE)   

#!/system/bin/sh
reboot

#!/system/bin/sh
reboot -p    #或者shutdown

LOCAL_PATH := $(call my-dir)  
include $(CLEAR_VARS)  
LOCAL_PREBUILT_EXECUTABLES := system_shutdown.sh system_reboot.sh  
LOCAL_MODULE_TAGS := optional  
include $(BUILD_MULTI_PREBUILT)  

 service system_shutdown /system/bin/system_shutdown.sh  #第一步中的sh文件名  
        oneshot  #只启动一次
        disabled #禁用服务，不会开机自启动，但是可以在应用程序中手动启动  
service system_reboot /system/bin/system_reboot.sh  
        oneshot  
        disabled  

SystemProperties.set("ctl.start", "system_shutdown"); //system_shutdown是sh脚本的文件名
SystemProperties.set("ctl.start", "system_reboot");  

 //Runtime执行linux－shell  
case R.id.shutdown_btn3:  
    try{  
        Log.v(TAG, "root Runtime->shutdown");  
        //Process proc =Runtime.getRuntime().exec(new String[]{"su","-c","shutdown"});  //关机  
        Process proc =Runtime.getRuntime().exec(new String[]{"su","-c","reboot -p"});  //关机  
        proc.waitFor();  
    }catch(Exception e){  
        e.printStackTrace();  
    }  
    break;  
case R.id.reboot_btn3:  
    try {   
        Log.v(TAG, "root Runtime->reboot");  
        Process proc =Runtime.getRuntime().exec(new String[]{"su","-c","reboot "});  //关机  
        proc.waitFor();  
    }catch (Exception ex){  
        ex.printStackTrace();  
    }  
    break;   

PowerManager pManager=(PowerManager) getSystemService(Context.POWER_SERVICE);    
pManager.reboot(null);//重启