android 源码的一些修改定制方案

Android异常分析(转)

http://www.cnblogs.com/xiyuan2016/p/6740623.html 

Mtklog 分析(学习)

http://www.cnblogs.com/xiyuan2016/p/6740521.html

===================================================================================

frameworks/base/services/core/java/com/android/server/am/BroadcastQueue.java

final void processNextBroadcast(boolean fromMsg) {

在  boolean skip = false; 下边添加

final String action = r.intent.getAction();
final String clsName = info.activityInfo.name;
if("android.intent.action.CONFIGURATION_CHANGED".equals(action) &&
        "应用类名".equals(clsName)){
    skip = true;
}

===================================================================================

去掉多用户后想让下拉单的多用户图标显示出来

/code2/lq80/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java

protected void updateVisibilities() {
    updateAlarmVisibilities();
    mEmergencyOnly.setVisibility(mExpanded && mShowEmergencyCallsOnly
            ? View.VISIBLE : View.INVISIBLE);
    mSettingsContainer.setVisibility(mExpanded ? View.VISIBLE : View.INVISIBLE);
    mSettingsContainer.findViewById(R.id.tuner_icon).setVisibility(
            TunerService.isTunerEnabled(mContext) ? View.VISIBLE : View.INVISIBLE);
    mMultiUserSwitch.setVisibility(mExpanded && mMultiUserSwitch.hasMultipleUsers()
            ? View.VISIBLE : View.INVISIBLE);
}

    mMultiUserSwitch.setVisibility(mExpanded && mMultiUserSwitch.hasMultipleUsers()
            ? View.VISIBLE : View.INVISIBLE);

这句话就是控制那个多用户现实不显示的

不支持多用户后点击多用户按钮会进入添加联系人的界面

frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/MultiUserSwitch.java

的onClick方法里的else里将原来的intent替换为

        Intent intent = new Intent(Intent.ACTION_INSERT);
        intent.setType("vnd.android.cursor.dir/person");
        intent.setType("vnd.android.cursor.dir/contact");
        intent.setType("vnd.android.cursor.dir/raw_contact");

就可以了。

设置里边多去掉多用户的菜单

packages/apps/Settings/AndroidManifest.xml

android:name="Settings$UserSettingsActivity"

这个activity里注释掉

android:name="com.android.settings.category"
    android:value="com.android.settings.category.device" />

就可以了。这个以后解释。

==============================================================================

播放声音

int max = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL);
mAudioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL, max, 0);
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 16, 0);
setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);//A: zhaopenglin for cannot play mp3 at once 20170607

if (mMediaPlayer != null) {
    mMediaPlayer.stop();
    mMediaPlayer.release();
    mMediaPlayer = null;
}

try {
    mMediaPlayer = new MediaPlayer();
    AssetFileDescriptor assetFileDescriptor = this.getResources().openRawResourceFd(R.raw.testmusic);
    if (assetFileDescriptor == null) return;

    mMediaPlayer.setDataSource(assetFileDescriptor.getFileDescriptor(), assetFileDescriptor.getStartOffset(),
            assetFileDescriptor.getLength());
    assetFileDescriptor.close();
    mMediaPlayer.setAudioStreamType(AudioManager.STREAM_VOICE_CALL);

    mMediaPlayer.prepare();
} catch (IllegalStateException e) {
    e.printStackTrace();
} catch (Exception e) {
    e.printStackTrace();
}

mMediaPlayer.setVolume(max, max);
mMediaPlayer.start();
mMediaPlayer.setLooping(true);

==========================================================================================================================

可分屏应用调用不能分屏应用，分屏报错

frameworks/base/packages/SystemUI/src/com/android/systemui/recents/Recents.java

@Override
public boolean dockTopTask(int dragMode, int stackCreateMode, Rect initialBounds,
        int metricsDockAction) {

…………………………

boolean screenPinningActive = ssp.isScreenPinningActive();
boolean isRunningTaskInHomeStack = runningTask != null &&
        SystemServicesProxy.isHomeStack(runningTask.stackId);
//add start
if(runningTask != null && runningTask.topActivity.getPackageName().equals("不能分屏应用的包名")) {
    Toast.makeText(mContext, R.string.recents_incompatible_app_message,
            Toast.LENGTH_SHORT).show();
    return false;
}
//add end

/code1/lq80/frameworks/base/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java

public final void onBusEvent(DragStartEvent event) {

……………………

if (!event.task.isDockable
        || event.task.getTopComponent().getPackageName().equals("不能分屏应用的包名")) {
    EventBus.getDefault().send(new ShowIncompatibleAppOverlayEvent());
} else {

public final void onBusEvent(DragEndEvent event) {

……………………

if (!mDragTask.isDockable
        || mDragTask.getTopComponent().getPackageName().equals("不能分屏应用包名")) { 
    EventBus.getDefault().send(new HideIncompatibleAppOverlayEvent());
}

===========================================================================

8.0 USB窗口解锁白屏

frameworks/base/services/core/java/com/android/server/am/KeyguardController.java

 mStackSupervisor.addStartingWindowsForVisibleActivities(false /* taskSwitch */);

================================================================================================

默认打开launcher3在设置里的通知

frameworks\base\services\core\java\com\android\server\notification\ManagedServices.java

private void rebuildRestoredPackages() {
    mRestoredPackages.clear();
    String secureSettingName = restoredSettingName(mConfig.secureSettingName);
    String secondarySettingName = mConfig.secondarySettingName == null
            ? null : restoredSettingName(mConfig.secondarySettingName);
    //add by zhaopenglin start
    try {
        if ((Settings.System.getInt(mContext.getContentResolver(), "lalalaal", 0) == 0)
                && Settings.Secure.ENABLED_NOTIFICATION_LISTENERS.equals(mConfig.secureSettingName)) {
            Settings.Secure.putString(mContext.getContentResolver(), mConfig.secureSettingName,
                    "com.android.launcher3/com.android.launcher3.notification.NotificationListener");
            Settings.System.putInt(mContext.getContentResolver(), "lalalaal", 1);
        }
    }catch (Exception e){}
    //add by zhaopenglin  end
    int[] userIds = mUserProfiles.getCurrentProfileIds();
    final int N = userIds.length;
    for (int i = 0; i < N; ++i) {
        ArraySet names =
                loadComponentNamesFromSetting(secureSettingName, userIds[i]);
        if (secondarySettingName != null) {
            names.addAll(loadComponentNamesFromSetting(secondarySettingName, userIds[i]));
        }
        for (ComponentName name : names) {
            mRestoredPackages.add(name.getPackageName());
        }
    }
}