本文主要是針對android4.2關機菜單添加重啟功能

A.關機提示
android4.2/frameworks/base/policy/src/com/android/internal/policy/impl/GlobalActions.java

?

[java]?view plaincopy

private?void?handleShow()?{??

?????//?本函數不需要修改...??

?????awakenIfNecessary();??

?????mDialog?=?createDialog();??

?????prepareDialog();??

?????WindowManager.LayoutParams?attrs?=?mDialog.getWindow().getAttributes();??

?????attrs.setTitle("GlobalActions");??

?????mDialog.getWindow().setAttributes(attrs);??

?????mDialog.show();//?關機選擇對話框??

??

?????mDialog.getWindow().getDecorView().setSystemUiVisibility(View.STATUS_BAR_DISABLE_EXPAND);??

??

?????/****************?

?

??????如果只需要關機確認可以修改為:?

??????awakenIfNecessary();?

??????mWindowManagerFuncs.shutdown(true);?

?

?????*******************/??

?}??

?? 關機選項菜單 找到createDialog() 賦值power off那一項,? 修改關機為:? ?????? mWindowManagerFuncs.reboot(true); [java]?view plaincopy

private?GlobalActionsDialog?createDialog()?{??

????????????....//?省略??

????????????//?first:?power?off??

????????????mItems.add(??

????????????????....//?省略??

???????????????});??

/??

????????????//?second:reboot??添加這一項????

????????????try?{//?添加try?catch?為了避免錯誤...??

???????????????mItems.add(??

???????????????????new?SinglePressAction(??

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

???????????????????????????R.string.global_action_reboot)?{??

??

???????????????????????public?void?onPress()?{??

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

????????????//????????????????????mWindowManagerFuncs.rebootSafeMode(true);??

???????????????????????//????mWindowManagerFuncs.reboot(mContext,null,false);??

???????????????????????//????ShutdownThread.reboot(mContext,null,false);??

???????????????????????????try?{??

???????????????????????????????mWindowManagerFuncs.reboot(true);??

???????????????????????????}?catch?(Exception?e)?{??

???????????????????????????????//?TODO:?handle?exception??如果有問題,?最好在這里打印一些信息看看是不是這里出問題了??

???????????????????????????}??

??

???????????????????????}??

??

???????????????????????public?boolean?showDuringKeyguard()?{??

???????????????????????????return?true;??

???????????????????????}??

??

???????????????????????public?boolean?showBeforeProvisioning()?{??

???????????????????????????return?true;??

???????????????????????}??

???????????????????????????});??

????????????????????????}?catch?(Exception?e)?{??

???????????????????????????//?TODO:?handle?exception????

????????????????????????}??

????????????????????}??

????????????????????<pre?name="code"?class="java">??????????????/??

?........//省略 B. 1)??? android4.2/frameworks/base/core/java/android/view/WindowManagerPolicy.java??? 找到WindowManagerFuncs這個interface的定義，增加如下function的聲明: [java]?view plaincopy

public?interface?WindowManagerFuncs?{??

??

????public?void?reboot(boolean?confirm);??

??

}??

?
??? 2)
??? android4.2/frameworks/base/services/java/com/android/server/wm/WindowManagerService.java

??? 找到shutdown()函數，在其后面添加reboot()函數，函數內容如下：

[java]?view plaincopy

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

??

@Override??

??

public?void?reboot(boolean?confirm)?{??

??

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

??

}??

C. 修改關機時的進度框提示

????? android4.2/frameworks/base/services/java/com/android/server/power/ShutdownThread.java

? [java]?view plaincopy

/*/?

?//修改前：?

?……?

??pd.setTitle(context.getText(com.android.internal.R.string.power_off));?

??pd.setMessage(context.getText(com.android.internal.R.string.shutdown_progress));?

?……?

?/*/??

?//修改后：??

?……??

?if(mReboot){?????//?reboot?progress??

??????????pd.setTitle(context.getText(com.android.internal.R.string.global_action_reboot));??

??????????pd.setMessage(context.getText(com.android.internal.R.string.reboot_progress));??

??????}else{??????????//?shutdown?progress??

??????????pd.setTitle(context.getText(com.android.internal.R.string.power_off));??

??????????pd.setMessage(context.getText(com.android.internal.R.string.shutdown_progress));??

??????}??

?……??

?//*/??

D.? 重啟詢問對話框?? // 這部分可能代碼不一樣? 不過都是修改shutdownInner函數里面的sConfirmDialog這個dialog的

? [cpp]?view plaincopy

shutdownInner(final?Context?context,?boolean?confirm)//???

??????if(Settings.Global.getInt(context.getContentResolver(),?Settings.Global.DEVICE_PROVISIONED,?1)==1?&&??

??????????SystemProperties.getBoolean("ro.sys.bootfast",?false)){??

??????????????......??

??????????????//?這部分可能代碼不一樣??不過都是修改sConfirmDialog這個dialog的??

??????????????if(mReboot){??

??????????????????idBootMode?=?com.android.internal.R.string.reboot_confirm_question;??

??????????????}else{??

??????????????????idBootMode?=?com.android.internal.R.string.shutdown_confirm_question;??

??????????????}??

??????????????sConfirmDialog?=?new?AlertDialog.Builder(context)??

??????????????????.setTitle(mReboot??

????????????????????????com.android.internal.R.string.global_action_reboot??

??????????????????????:?com.android.internal.R.string.power_off)??

??????????????????.setMessage(idBootMode)??

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

??????????????????public?void?onClick(DialogInterface?dialog,?int?which)?{??

??????????????????????if(mPolicy!=null)??

??????????????????????????mPolicy.acquireBAView();??

??????????????????????beginShutdownSequence(context);??

??????????????????}??

??????????????????})??

??????????????????.setNegativeButton(com.android.internal.R.string.no,?null)??

??????????????????.create();??

??

?????????????}??

??? /說明? 無關? 只做注釋///
? ? ? ? ? ? ? // 下面這個函數會殺死所有的activity, 桌面不能殺死"com.android.launcher", 否則就會導致關機的時候顯示開機動畫
????????????? private? void killRemoveActivity(Context context)

???? /end說明///???????

????

F. 重啟功能實現了，但是不能到此結束，定制Android系統的重啟功能，添加選項和修改重啟提示框時加入了“重啟”和“正在重啟”的字符串，
?? 所以會涉及到在系統資源文件中添加新的字符串，
?? 源碼中資源文件涉及到的多國語言直接忽略，我只在values/strings.xml和values-zh-rCN/strings.xml兩個文件中加入對應的字符串：

??? 路徑: framework/base/core/res/res/valuse/?? or? framework/base/core/res/res/values-zh-rCN/

? 上面是拷貝別人的,? 實際上我發現如果不在symbols.xml添加相關的字符串信息,? 編譯會報錯的,? 故應該在framework/base/core/res/res/valuse/ symbols.xml參考其他的把自己的添加上:

[html]?view plaincopy

strings.xml:??

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

?????<string?name="global_action_reboot">"Reboot"</string>??

?????<string?name="reboot_progress">"Rebooting..."</string>??

??

?symbols.xml??

?????<java-symbol?type="string"?name="reboot_confirm_question"?/>??

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

?????<java-symbol?type="string"?name="reboot_progress"?/>??

E.最后編譯
因為修改涉及到系統資源文件又涉及到policy.jar包，經過多次嘗試，正確的編譯順序如下：
步驟1.編譯frameworks/base/res，在out/target/product/X設備名X/system/framework/目錄下生成framework-res.apk
步驟2.編譯frameworks/base/，在o同樣目錄下生成framework.jar包（不能忽略，不然步驟3編譯報錯）
步驟3.編譯frameworks/base/services/java/???? 生成services.jar

步驟4.編譯frameworks/base/policy，在同樣目錄下生成android.policy.jar 包

參考:?

http://blog.csdn.net/zzp16/article/details/7829063

http://www.2cto.com/kf/201403/288710.html

總結

以上是生活随笔為你收集整理的android4.2添加重启菜单项的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。