Android Sprd省电管理（二）应用省电模式设置流程

在Android Sprd省电管理（一）appPowerSaveConfig.xml，我们介绍了appPowerSaveConfig.xml的主要参数的意义，这一篇我们介绍下，怎么设置应用的各种省电模式

首先看SprdManageApplications这个类

以锁屏清理为例，点击开关

    @Overridepublic void onItemClick(AdapterView<?> parent, View view, int position, long id) {if (mApplications != null && mApplications.getCount() > position) {ApplicationsState.AppEntry entry = mApplications.getAppEntry(position);String pkg = entry.info.packageName;muid = entry.info.uid;//for app standy optimizationif (mArgument == TYPE_APP_WAKEUP) {Log.d(TAG,"onItemClick pkg = " + pkg);startAppConfigFragment(SprdAppItemBatterySaverFragment.class, pkg, entry.label);return;} else if (mArgument == TYPE_APP_POWER_INTENSIVE) {restartBatteryStatsLoader();startAdvancedPowerUsageDetail(pkg);return;}//for lock screen close-app and app auto-runSprdAppViewHolder holder = (SprdAppViewHolder) view.getTag();if (holder == null ) return;holder.app_switch.toggle();boolean isChecked = holder.app_switch.isChecked();Log.d(TAG, "isChecked: " + isChecked + " pkg: " + pkg);mSwitchState = DEFAULT;int configValue = CLOSE;if (mArgument == TYPE_APP_CLOSE_LOCKED) {configValue = isChecked ? CLOSE : DO_NOT_CLOSE;} else {configValue = isChecked ? DO_NOT_OPTIMIZE : OPTIMIZE;}try {//将package name, 省电模式，省电模式的值传给setAppPowerSaveConfigWithTypemPowerManagerEx.setAppPowerSaveConfigWithType(pkg, mAppConfigType, configValue);mApplications.setAppStateText(isChecked, holder);} catch (RemoteException e) {// Not much we can do here}if (isChecked) {mApplications.setSwitchIfAllAppOpen();} else {if (mAllAppSwitch != null) mAllAppSwitch.setChecked(false);}}}

PowerManagerServiceEx.java-->setAppPowerSaveConfigWithType()

    public boolean setAppPowerSaveConfigWithType(String appName, int type, int value) {return mPowerControllerInternal.setAppPowerSaveConfigWithType(appName, type, value);}

PowerControll.java-->setAppPowerSaveConfigWithType()

        boolean setAppPowerSaveConfigWithType(String appName, int type, int value) {if (DEBUG) Slog.d(TAG, "setAppPowerSaveConfigWithType(), appName: " + appName + ", type: " + AppPowerSaveConfig.ConfigType2Str(type) + ", value: " + AppPowerSaveConfig.ConfigValue2Str(value));if ((null == appName) || ((type <= AppPowerSaveConfig.ConfigType.TYPE_NULL.value) || (type >= AppPowerSaveConfig.ConfigType.TYPE_MAX.value))|| ((value < AppPowerSaveConfig.VALUE_AUTO) || (value > AppPowerSaveConfig.VALUE_NO_OPTIMIZE))) {return false;}try {synchronized (mMsgLock) {if
//发送MSG_SET_APP_POWERSAVE_CONFIG_WITHTYPE
(!msgHandler.sendMessage(msgHandler.obtainMessage(MSG_SET_APP_POWERSAVE_CONFIG_WITHTYPE, type, value, appName))) return false;mMsgLock.wait();}} catch (InterruptedException e) {Slog.e(TAG, e.toString());}return true;}

            case MSG_SET_APP_POWERSAVE_CONFIG_WITHTYPE: {String appName = (String)msg.obj;setAppPowerSaveConfigWithTypeInternal(appName, msg.arg1, msg.arg2);}break;

PowerControll.java-->setAppPowerSaveConfigWithTypeInternal()

private boolean setAppPowerSaveConfigWithTypeInternal(String appName, int type, int value) {AppPowerSaveConfig oldConfig = mAppConfigMap.get(appName);if (null == oldConfig) {oldConfig = new AppPowerSaveConfig();}int oldValue = AppPowerSaveConfig.getConfigValue(oldConfig, type);if (DEBUG) Slog.d(TAG, "setAppPowerSaveConfigWithTypeInternal(), appName: " + appName + ", config type: " + AppPowerSaveConfig.ConfigType2Str(type) + ", new value: " + AppPowerSaveConfig.ConfigValue2Str(value)+ ", old value: " + AppPowerSaveConfig.ConfigValue2Str(oldValue));if (value != oldValue) {onPowerSaveConfigChanged(type, appName, oldValue, value, false);for (int j = 0; j < mHelpers.size(); j++) {PowerSaveHelper helper = mHelpers.get(j);if (0 != (AppPowerSaveConfig.mMaskArray[type] & helper.mMask)) {helper.onPowerSaveConfigChanged(type, appName, oldValue, value, false);}}}AppPowerSaveConfig.setConfigWithType(oldConfig, type, value);if (DEBUG) Slog.d(TAG, "setAppPowerSaveConfigWithTypeInternal() config: " + oldConfig);if (oldConfig.isReset()) {if (DEBUG) Slog.d(TAG, "setAppPowerSaveConfigWithTypeInternal() remove old");mAppConfigMap.remove(appName);} else {if (DEBUG) Slog.d(TAG, "setAppPowerSaveConfigWithTypeInternal() put new");mAppConfigMap.put(appName, oldConfig);}//写入到xml文件保存AppPowerSaveConfig.writeConfig(mAppConfigMap);synchronized(mMsgLock) {mMsgLock.notify();}return true;}

AppPowerSaveConfig.java-->writeConfig()

    public static boolean writeConfig(Map<String, AppPowerSaveConfig> appConfigMap) {AtomicFile aFile = new AtomicFile(new File(new File(Environment.getDataDirectory(), "system"), APPCONFIG_FILENAME));FileOutputStream stream;try {stream = aFile.startWrite();} catch (IOException e) {Slog.e(TAG, "Failed to write state: " + e);return false;}try {XmlSerializer serializer = new FastXmlSerializer();serializer.setOutput(stream, "utf-8");serializer.startDocument(null, true);serializer.startTag(null, XML_TAG_FILE);if (appConfigMap!= null) {for (Map.Entry<String, AppPowerSaveConfig> cur : appConfigMap.entrySet()) {final String appName = cur.getKey();final AppPowerSaveConfig config = cur.getValue();if (config.isReset()) continue;serializer.startTag(null, XML_TAG_PKG);serializer.attribute(null, XML_ATTRIBUTE_PKG_NAME, appName);serializer.attribute(null, XML_ATTRIBUTE_PKG_OPTIMIZE, String.valueOf(config.optimize));serializer.attribute(null, XML_ATTRIBUTE_PKG_ALARM, String.valueOf(config.alarm));serializer.attribute(null, XML_ATTRIBUTE_PKG_WAKELOCK, String.valueOf(config.wakelock));serializer.attribute(null, XML_ATTRIBUTE_PKG_NETWORK, String.valueOf(config.network));serializer.attribute(null, XML_ATTRIBUTE_PKG_AUTOLAUNCH, String.valueOf(config.autoLaunch));serializer.attribute(null, XML_ATTRIBUTE_PKG_SECONDARYLAUNCH, String.valueOf(config.secondaryLaunch));serializer.attribute(null, XML_ATTRIBUTE_PKG_LOCKSCREENCLEANUP, String.valueOf(config.lockscreenCleanup));serializer.attribute(null, XML_ATTRIBUTE_PKG_POWERCONSUMERTYPE, String.valueOf(config.powerConsumerType));serializer.endTag(null, XML_TAG_PKG);}}serializer.endTag(null, XML_TAG_FILE);serializer.endDocument();aFile.finishWrite(stream);} catch (IOException e) {Slog.e(TAG, "Failed to write state, restoring backup."+"exp:"+"\n"+e);aFile.failWrite(stream);return false;}return true;}

每次开机的时候，都会读取这个xml文件,将xml的值赋值给mAppConfigMap

private void initData() {......AppPowerSaveConfig.readConfig(mAppConfigMap);......
}

AppPowerSaveConfig.java-->readConfig()

public static boolean readConfig(Map<String, AppPowerSaveConfig> appConfigMap){AtomicFile aFile = new AtomicFile(new File(new File(Environment.getDataDirectory(), "system"), APPCONFIG_FILENAME));InputStream stream = null;try {stream = aFile.openRead();}catch (FileNotFoundException exp){Slog.e(TAG, ">>>file not found,"+exp);}if (null == stream) {aFile = new AtomicFile(new File(new File(Environment.getRootDirectory(), "etc"), APPCONFIG_FILENAME));try {stream = aFile.openRead();} catch (FileNotFoundException exp){Slog.e(TAG, ">>>default file not found,"+exp);return false;}}try {String appName = null;AppPowerSaveConfig appConfig = null;XmlPullParser pullParser = Xml.newPullParser();pullParser.setInput(stream, "UTF-8");int event = pullParser.getEventType();while (event != XmlPullParser.END_DOCUMENT) {switch (event) {case XmlPullParser.START_DOCUMENT://retList = new ArrayList<PowerGuruAlarmInfo>();break;case XmlPullParser.START_TAG:if (XML_TAG_PKG.equals(pullParser.getName())) {appConfig = new AppPowerSaveConfig();appName = pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_NAME);appConfig.optimize = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_OPTIMIZE));appConfig.alarm = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_ALARM));appConfig.wakelock = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_WAKELOCK));appConfig.network = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_NETWORK));appConfig.autoLaunch = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_AUTOLAUNCH));appConfig.secondaryLaunch = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_SECONDARYLAUNCH));appConfig.lockscreenCleanup = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_LOCKSCREENCLEANUP));appConfig.powerConsumerType = Integer.parseInt(pullParser.getAttributeValue(null, XML_ATTRIBUTE_PKG_POWERCONSUMERTYPE));}break;case XmlPullParser.END_TAG:if(XML_TAG_PKG.equals(pullParser.getName())) {appConfigMap.put(appName, appConfig);appConfig = null;}break;}event = pullParser.next();}} catch (IllegalStateException e) {Slog.e(TAG, "Failed parsing " + e);return false;} catch (NullPointerException e) {Slog.e(TAG, "Failed parsing " + e);return false;} catch (NumberFormatException e) {Slog.e(TAG, "Failed parsing " + e);return false;} catch (XmlPullParserException e) {Slog.e(TAG, "Failed parsing " + e);return false;} catch (IOException e) {Slog.e(TAG, "Failed parsing " + e);return false;} catch (IndexOutOfBoundsException e) {Slog.e(TAG, "Failed parsing " + e);return false;} finally {try {stream.close();} catch (IOException e) {Slog.e(TAG, "Fail to close stream " + e);return false;} catch (Exception e) {Slog.e(TAG, "exception at last,e: " + e);return false;}}return true;}

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Android Sprd省电管理（二）应用省电模式设置流程

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