长按电源键，为Android手机添加自动重启Item

http://blog.csdn.net/wjky2014/article/details/24123533

修改Framwork层源码添加重启效果如下 ： 仿照关机代码写重启效果



修改实现的方法如下：

1.添加重新启动的图标 分别适应 高清 高 中 低 4 种不同的分辨率 路径如下

frameworks/base/core/res/res/drawable-hdpi/ic_lock_reboot.png

frameworks/base/core/res/res/drawable-ldpi/ic_lock_reboot.png

frameworks/base/core/res/res/drawable-mdpi/ic_lock_reboot.png

/frameworks/base/core/res/res/drawable-xhdpi/ic_lock_reboot.png

图标如下：

2.准备一下重启提示语的字符串

支持英语修改路径：frameworks/base/core/res/res/values/strings.xml

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<string name="reboot_confirm" product="tablet">Your phone will reboot.</string>

<string name="reboot_confirm" product="default">Your phone will reboot.</string>

<string name="reboot_confirm_question">Do you want to reboot?</string>

<string name="reboot">Reboot</string>

支持中文修改路径：

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<string name="reboot">重新启动</string>

<string name="reboot_confirm" product="tablet">您的手机将会重新启动.</string>

<string name="reboot_confirm" product="default">您的手机将会重新启动.</string>

<string name="reboot_confirm_question">您要重新启动吗？</string>

3.为弹出的对话框添加一个重启的item

修改路径如下：frameworks/base/policy/src/com/android/internal/policy/impl/GlobalActions.java

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// first: power off 这个是关机的item

mItems.add(

new SinglePressAction(

com.android.internal.R.drawable.ic_lock_power_off,

R.string.global_action_power_off) {

public void onPress() {

// shutdown by making sure radio and power are handled accordingly.

mWindowManagerFuncs.shutdown(true);

}

public boolean onLongPress() {

mWindowManagerFuncs.rebootSafeMode(true);

return true;

}

public boolean showDuringKeyguard() {

return true;

}

public boolean showBeforeProvisioning() {

return true;

}

});

//----------------------添加重启的item add start

mItems.add(

new SinglePressAction(

com.android.internal.R.drawable.ic_lock_reboot,

R.string.global_action_reboot) {

public void onPress() {

// shutdown by making sure radio and power are handled accordingly.

mWindowManagerFuncs.reboot(true);

}

public boolean onLongPress() {

return true;

}

public boolean showDuringKeyguard() {

return true;

}

public boolean showBeforeProvisioning() {

return true;

}

}); // add end

4.添加重启的方法 仿照关机跟进入安全模式的方法写重启方法

修改路径： frameworks/base/core/java/android/view/WindowManagerPolicy.java

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public void shutdown(boolean confirm);

public void reboot(boolean confirm); // add this line

public void rebootSafeMode(boolean confirm);

5.实现重启reboot的方法

添加路径如下：frameworks/base/services/java/com/android/server/wm/WindowManagerService.java

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// 关机

public void shutdown(boolean confirm) {

ShutdownThread.shutdown(mContext, confirm);

}

//add start 添加从其方法

public void reboot(boolean confirm) {

ShutdownThread.reboot(mContext,"", confirm);

}

// Called by window manager policy. Not exposed externally.

//进入安全模式

public void rebootSafeMode(boolean confirm) {

ShutdownThread.rebootSafeMode(mContext, confirm);

}

6.重启方法调用线程实现

修改路径：frameworks/base/services/java/com/android/server/power/ShutdownThread.java

修改ShutdownThread 类中的shutdownInner方法 共3个修改点

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static void shutdownInner(final Context context, boolean confirm) {

// 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");

bConfirmForAnimation = confirm;

final int longPressBehavior = context.getResources().getInteger(

com.android.internal.R.integer.config_longPressOnPowerBehavior);

int resourceId = mRebootSafeMode // -----------modify ------delete final

? com.android.internal.R.string.reboot_safemode_confirm

: (longPressBehavior == 2

? com.android.internal.R.string.shutdown_confirm_question

: com.android.internal.R.string.shutdown_confirm);

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

if(mReboot) resourceId = com.android.internal.R.string.reboot_confirm; //------------add this line

if (confirm) {

final CloseDialogReceiver closer = new CloseDialogReceiver(context);

if (sConfirmDialog != null) {

sConfirmDialog.dismiss();

}

//if (sConfirmDialog == null) { //-----------------------modify this line

Log.d(TAG, "PowerOff dialog doesn't exist. Create it first");

sConfirmDialog = new AlertDialog.Builder(context)

.setTitle(mRebootSafeMode

? com.android.internal.R.string.reboot_safemode_title

: (mReboot?com.android.internal.R.string.reboot:com.android.internal.R.string.power_off))//modify this line .添加判断重启

.setMessage(resourceId)

.setPositiveButton(com.android.internal.R.string.yes, new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

beginShutdownSequence(context);

if (sConfirmDialog != null) {

sConfirmDialog = null;

}

}

})

.setNegativeButton(com.android.internal.R.string.no, new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

synchronized (sIsStartedGuard) {

sIsStarted = false;

}

if (sConfirmDialog != null) {

sConfirmDialog = null;

}

}

})

.create();

sConfirmDialog.setCancelable(false);//blocking back key

sConfirmDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);

/*if (!context.getResources().getBoolean(

com.android.internal.R.bool.config_sf_slowBlur)) {

sConfirmDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);

}*/

/* To fix video+UI+blur flick issue */

sConfirmDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);

// } //-------------------modify this line

closer.dialog = sConfirmDialog;

sConfirmDialog.setOnDismissListener(closer);

if (!sConfirmDialog.isShowing()) {

sConfirmDialog.show();

}

} else {

beginShutdownSequence(context);

}

}

7.添加新的API接口

修改路径：frameworks/base/api/current.txt

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field public static final int ic_lock_power_off = 17301552; // 0x1080030

field public static final int ic_lock_reboot = 17301662; // 0x108009e

8.对所用到的资源进行声明 (这个是Android 4.1版本中的)

修改路径：frameworks/base/core/res/res/values/public.xml

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<public type="drawable" name="ic_lock_reboot" id="0x0108009e" />

9.以上修改好后，需要对所用到的资源进行声明

修改路径：frameworks/base/core/res/res/values/symbols.xml

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<java-symbol type="string" name="reboot" />

<java-symbol type="string" name="reboot_confirm" />

<java-symbol type="string" name="global_action_reboot" />