一：如何添加快捷开关
源码路径：frameworks/base/packages/SystemUI/res/values/config.xml
添加headset快捷开关，参考如下修改。
Index: res/values/config.xml
===================================================================
--- res/values/config.xml (版本 6870)
+++ res/values/config.xml (工作副本)
@@ -101,7 +101,7 @@
<!-- The default tiles to display in QuickSettings -->
<!-- M: add hotknot tile -->
<string name="quick_settings_tiles_default" translatable="false">
- wifi,cell,battery,autobringht,custom(com.bullitt_group.night/nightsight.bullitt_group.com.night.quicksettings.QuickSettingsService),flashlight,dnd,rotation,bt,airplane,hotknot,nfc,location
+ wifi,cell,battery,autobringht,custom(com.bullitt_group.night/nightsight.bullitt_group.com.night.quicksettings.QuickSettingsService),flashlight,dnd,rotation,bt,airplane,hotknot,nfc,location,headset
</string>
<!-- Tiles native to System UI. Order should match "quick_settings_tiles_default" -->
Android版本7.1修改方式
源码路径：frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
创建HeadsetTile 对象，实现快捷开关主要功能。
Index: src/com/android/systemui/statusbar/phone/QSTileHost.java
===================================================================
--- src/com/android/systemui/statusbar/phone/QSTileHost.java (版本 6870)
+++ src/com/android/systemui/statusbar/phone/QSTileHost.java (工作副本)
@@ -41,6 +41,7 @@
import com.android.systemui.qs.external.TileLifecycleManager;
import com.android.systemui.qs.external.TileServices;
import com.android.systemui.qs.tiles.AirplaneModeTile;
+import com.android.systemui.qs.tiles.HeadsetTile;
import com.android.systemui.qs.tiles.BatteryTile;
import com.android.systemui.qs.tiles.BluetoothTile;
import com.android.systemui.qs.tiles.CastTile;
@@ -501,6 +502,7 @@
else if (tileSpec.equals("battery")) return new BatteryTile(this);
else if (tileSpec.equals("saver")) return new DataSaverTile(this);
else if (tileSpec.equals("night")) return new NightDisplayTile(this);
+ else if (tileSpec.equals("headset")) return new HeadsetTile(this);
/// M: Add extra tiles in quicksetting @{
else if (tileSpec.equals("hotknot") && SIMHelper.isMtkHotKnotSupport())
Android8.0修改方式，原理一样，只是代码路径不同，这里不做过多介绍。
源码路径：frameworks/base/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSFactoryImpl.java
public class QSFactoryImpl implements QSFactory {
private static final String TAG = "QSFactory";
private final QSTileHost mHost;
public QSFactoryImpl(QSTileHost host) {
mHost = host;
}
public QSTile createTile(String tileSpec) {
if (tileSpec.equals("wifi")) return new WifiTile(mHost);
else if (tileSpec.equals("bt")) return new BluetoothTile(mHost);
else if (tileSpec.equals("cell")) return new CellularTile(mHost);
else if (tileSpec.equals("dnd")) return new DndTile(mHost);
else if (tileSpec.equals("inversion")) return new ColorInversionTile(mHost);
else if (tileSpec.equals("airplane")) return new AirplaneModeTile(mHost);
else if (tileSpec.equals("work")) return new WorkModeTile(mHost);
else if (tileSpec.equals("rotation")) return new RotationLockTile(mHost);
else if (tileSpec.equals("flashlight")) return new FlashlightTile(mHost);
else if (tileSpec.equals("location")) return new LocationTile(mHost);
else if (tileSpec.equals("cast")) return new CastTile(mHost);
else if (tileSpec.equals("hotspot")) return new HotspotTile(mHost);
else if (tileSpec.equals("user")) return new UserTile(mHost);
else if (tileSpec.equals("battery")) return new BatterySaverTile(mHost);
else if (tileSpec.equals("saver")) return new DataSaverTile(mHost);
else if (tileSpec.equals("night")) return new NightDisplayTile(mHost);
else if (tileSpec.equals("nfc")) return new NfcTile(mHost);
// Intent tiles.
else if (tileSpec.startsWith(IntentTile.PREFIX)) return IntentTile.create(mHost, tileSpec);
else if (tileSpec.startsWith(CustomTile.PREFIX)) return CustomTile.create(mHost, tileSpec);
else {
Log.w(TAG, "Bad tile spec: " + tileSpec);
return null;
}
}
二：快捷开关功能实现
这里主要实现，打开开关弹出Notification（不可删除通知），关闭开关才能关闭通知。
源码路径：frameworks/base/packages/SystemUI/src/com/android/systemui/qs/tiles/HeadsetTile.java
- 继承
QSTile<QSTile.BooleanState> - newTileState方法中
return new BooleanState() - handleClick方法处理点击事件
- handleUpdateState方法更新状态信息
/* * Copyright (c) 2016, The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
package com.android.systemui.qs.tiles;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.provider.Settings;
import android.util.Log;
import android.widget.Switch;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.systemui.R;
import com.android.systemui.SystemUI;
import com.android.systemui.qs.QSTile;
public class HeadsetTile extends QSTile<QSTile.BooleanState> {
private Notification notification = new Notification();
private NotificationManager mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
private boolean headsetState;
public boolean isHeadsetState() {
return headsetState;
}
public void setHeadsetState(boolean headsetState) {
this.headsetState = headsetState;
}
public HeadsetTile(Host host) {
super(host);
}
@Override
public BooleanState newTileState() {
return new BooleanState();
}
@Override
protected void handleClick() {
//default mState.value is false
final boolean activated = !mState.value;
Log.d("jasun", "========activated========" + activated);
MetricsLogger.action(mContext, getMetricsCategory(), activated);
if (activated == true) {
SendNotification("Disable the headphone jack.");
setHeadsetState(activated);
} else {
mNotificationManager.cancel(1);
setHeadsetState(activated);
}
refreshState();
}
@Override
protected void handleUpdateState(BooleanState state, Object arg) {
final boolean isActivated = isHeadsetState();
state.value = isActivated;
state.label = mContext.getString(R.string.quick_settings_headset_label);
state.icon = ResourceIcon.get(isActivated ? R.drawable.ic_qs_headset_on
: R.drawable.ic_qs_headset_off);
state.contentDescription = mContext.getString(isActivated
? R.string.quick_settings_headset_summary_on
: R.string.quick_settings_headset_summary_off);
state.minimalAccessibilityClassName = state.expandedAccessibilityClassName
= Switch.class.getName();
}
@Override
public int getMetricsCategory() {
return MetricsEvent.QS_headset;
}
@Override
public Intent getLongClickIntent() {
return new Intent(Settings.ACTION_headset_SETTINGS);
}
@Override
protected void setListening(boolean listening) {
}
private void sendNotification(String message) {
Intent intent = new Intent(mContext, SystemUI.class);
PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0,
intent, 0);
notification.icon = R.drawable.ic_qs_headset_on;
notification.tickerText = "HeadSet can not used";
notification.when = System.currentTimeMillis();
notification.defaults = Notification.DEFAULT_SOUND
| Notification.DEFAULT_VIBRATE;// set default sound
// notification.flags = Notification.FLAG_AUTO_CANCEL;// click auto disappeared
notification.flags = Notification.FLAG_NO_CLEAR;
notification.setLatestEventInfo(mContext, "Headset can not used", message, pendingIntent);
mNotificationManager.notify(1, notification);
}
@Override
public CharSequence getTileLabel() {
return mContext.getString(R.string.quick_settings_headset_label);
}
}
喜欢源码分析系列可参考其他文章：
Android源码分析（一）—–如何快速掌握Android编译文件
Android源码分析（二）—–如何编译修改后的framework资源文件
Android源码分析（三）—–系统框架设计思想
Android源码分析（四）—–Android源码编译及刷机步骤
Android源码分析（五）—–如何从架构师的角度去设计Framework框架
