為何要做這個

我要在framework的PhoneWindowManager.java里面調用LightService.java里面的函數，用來做燈光的提示之類的，為何我要在PhoneWindowManager.java里面加這個呢，這里就不做討論了，但是直接調用哪些接口是不行的，所以就引進了ipc通信，所以就有了我這篇博客，這其中有個安卓的大神朋友幫我解惑了很多問題

Aidl 和ipc通信之類的我就不講了，我永遠都是實踐家，而且我的專長是linux驅動，這個東西也是現在慢慢負責公司產品framework 需要做的才去學習的
要做的文件修改如下：

補丁鏈接 說明一下是Android 4.4的

Changes not staged for commit:(use "git add <file>..." to update what will be committed)(use "git checkout -- <file>..." to discard changes in working directory)modified: frameworks/base/Android.mkmodified: frameworks/base/core/java/android/app/ContextImpl.javamodified: frameworks/base/core/java/android/content/Context.javamodified: frameworks/base/core/java/android/content/ContextWrapper.javamodified: frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.javamodified: frameworks/base/services/java/com/android/server/SystemServer.javamodified: frameworks/base/test-runner/src/android/test/mock/MockContext.javamodified: frameworks/base/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.javamodified: kernel/mediatek/custom/outmodified: mediatek/misc/ota_scatter.txtUntracked files:(use "git add <file>..." to include in what will be committed)bootable/bootloader/lk/outframeworks/base/core/java/android/content/pm/ILightManager.aidlframeworks/base/core/java/android/content/pm/LightManager.javaframeworks/base/services/java/com/android/server/LightManagerService.java

第一步：加入aidl文件

frameworks/base/core/java/android/content/pm/ILightManager.aidlframeworks/base/core/java/android/content/pm/LightManager.java //在app里面這個東西是自動生成的，但是這個這個是手動寫出來的

第二步：加入service相關的文件還有

frameworks/base/services/java/com/android/server/LightManagerService.java

第三步：加入注冊需要的一些代碼

modified: frameworks/base/Android.mkmodified: frameworks/base/core/java/android/app/ContextImpl.javamodified: frameworks/base/core/java/android/content/Context.javamodified: frameworks/base/core/java/android/content/ContextWrapper.javamodified: frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.javamodified: frameworks/base/services/java/com/android/server/SystemServer.javamodified: frameworks/base/test-runner/src/android/test/mock/MockContext.javamodified: frameworks/base/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java

第四步：在PhoneWindowManager.java加入調用代碼

--- a/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java +++ b/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java @@ -37,6 +37,7 @@ import android.content.IntentFilter;import android.content.ServiceConnection;import android.content.pm.ApplicationInfo;import android.content.pm.ActivityInfo; +import android.content.pm.LightManager;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.content.res.CompatibilityInfo; @@ -252,6 +253,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {IWindowManager mWindowManager;WindowManagerFuncs mWindowManagerFuncs;PowerManager mPowerManager; + //AlarmManagerService mAlarmManagerService;//weiqifaIStatusBarService mStatusBarService;boolean mPreloadedRecentApps;final Object mServiceAquireLock = new Object(); @@ -1019,8 +1021,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);- -mBroadcastWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"PhoneWindowManager.mBroadcastWakeLock");mEnableShiftMenuBugReports = "1".equals(SystemProperties.get("ro.debuggable")); @@ -2256,41 +2256,19 @@ public class PhoneWindowManager implements WindowManagerPolicy {}if(keyCode == KeyEvent.KEYCODE_HDYRODENT){ - if(down) - { + if(down){ + LightManager a = mContext.getLightManager(); + a.addStudent("12312345678"); + Log.d(TAG,"--------------------------->mLightManager is null ");Log.d(TAG,"key mode m is pressed!!!!");Intent intent = new Intent("com.key.android.KEY_M_ACTION_DOWM");mContext.sendBroadcast(intent); - } - else - { + }else{Log.d(TAG,"key mode m is released!!!!");Intent intent = new Intent("com.key.android.KEY_M_ACTION_UP");mContext.sendBroadcast(intent);}}

第五步：查看日志

D/ADB_SERVICES( 222): read_data=8892 W/LightManagerService( 597): --------------->testLightManagerService<---------------12312345678 D/ADB_SERVICES( 222): max_read_time=0.000265 max_send_time=0.001093 W/LightManagerService( 597): <--------------->testLightManagerService<--------------->12312345678 創作挑戰賽新人創作獎勵來咯，堅持創作打卡瓜分現金大獎

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