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
<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：
<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
// 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 修改路径： frameworks/base/core/java/android/view/WindowManagerPolicy.java
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
// 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
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) { 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); } 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
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
<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
<java-symbol type="string" name="reboot" /> <java-symbol type="string" name="reboot_confirm" /> <java-symbol type="string" name="global_action_reboot" />