android集成友盟推送，点击通知，先启动应用，然后再跳指定 界面；应用前台，接收推送，应用内弹框
友情提示：在看本文前，最好对友盟推送的集成文档看个差不多，不然可能有些概念不是太清楚。
友盟集成文档：https://developer.umeng.com/docs/66632/detail/98581
本文demo下载地址：https://github.com/274800562/umengtest.git
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应用分为在线状态和离线状态，以应用进程是否存在为判断依据。
通知分为在线通知和离线通知，同样以应用进程是否存在时为判断依据。进程存在时接收到的通知即在线通知，离线时接收到的通知为离线通知。
一 、需求描述:
1.应用离线时，收到通知，点击通知，启动应用，启动SplashActivity->MainActivity,然后根据需要跳转相应界面。
2.应用在线：
1）应用在前台时，收到通知，应用内弹框，点击跳转响应界面；
2）应用在后台时，收到通知，存储通知数据，待应用切回到前台时再弹框，点击跳转响应界面。
二、需求实现
首先，我们设定有SplashActivity、MainActivity、DetailActivity、ListActvity四个类，我们通过UMessage对象的extra字段配置数据：type,id,title等，type=1时，跳转DetailActivity；type=2时，跳转ListActvity。
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1.友盟推送可以集成厂商通道，以接收离线通知。通过继承UmengNotifyClickActivity类，重写onMessage(),点击时回调此方法。
public class UmengClickActivityextends UmengNotifyClickActivity { private static StringTAG = UmengClickActivity.class.getName(); @Override public void onMessage(Intent intent0) { super.onMessage(intent0); //此方法必须调用，否则无法统计打开数 String body = intent0.getStringExtra(AgooConstants.MESSAGE_BODY); Log.e(TAG, "body:" + body); Gson gson = new Gson(); UmengClickBean bean = gson.fromJson(body, UmengClickBean.class); //ExtraBean包含三个字段：type,id,title,根据type跳转相应界面 ExtraBean extraBean = bean.getExtra(); if (null != bean) { Intent intent = new Intent(this, SplashActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//必须 intent.putExtra("bean", extraBean); intent.putExtra("tag", 1);//标志位，点击跳过去的，区别于正常逻辑跳转 startActivity(intent); finish(); } }}接着，启动SplashActivity->MainActivity。
public class SplashActivity extends AppCompatActivity { public static final String TAG = "SplashActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); int tag = getIntent().getIntExtra("tag", 0); //1.其他操作 省略 //2.跳主界面 Intent intent = new Intent(this,MainActivity.class); //tag==1时说明是点击离线通知过来的，需要携带数据跳转 if (tag == 1) { ExtraBean extraBean= (ExtraBean) getIntent().getSerializableExtra("bean"); intent.putExtra("bean", extraBean); intent.putExtra("tag", tag); } startActivity(intent); }}public class MainActivity extends AppCompatActivity { public static final String TAG = "MainActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); int tag = getIntent().getIntExtra("tag", 0); if (tag == 1) {//点击通知跳转过来的，有携带数据，需要执行跳转逻辑，根据type跳对应界面 ExtraBean extraBean = (ExtraBean) getIntent().getSerializableExtra("bean"); int type = extraBean.getType(); Log.e(TAG, "umeng type:" + type); Intent intent = null; if (type == 1) { intent = new Intent(this, DetailActivity.class); } else { intent = new Intent(this, ListActivity.class); } intent.putExtra("bean", extraBean); startActivity(intent); } }}DetailActivity、ListActivity代码相同：
public class DetailActivity extends AppCompatActivity { public static final String TAG = "DetailActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ExtraBean extraBean= (ExtraBean) getIntent().getSerializableExtra("bean"); String id = String.valueOf(extraBean.getId()); String title = extraBean.getTitle(); TextView textView = findViewById(R.id.textview); textView.setText("id:"+id+"\n"+"title:"+title); }}按上面的代码执行是没有什么问题的，但是有一种情况时，收到离线通知，不去点击，启动app，再去点击。这时候依然会去执行UmengClickActivity里的onMessage()方法。按照上边的逻辑会启动SplashActivity，而不是根据type值启动对应的Activity。
我的实现思路是，在onMessage()方法内部添加判断，根据结果执行不同逻辑。
public class UmengClickActivity extends UmengNotifyClickActivity { private static String TAG = UmengClickActivity.class.getName(); @Override public void onMessage(Intent intent0) { super.onMessage(intent0); //此方法必须调用，否则无法统计打开数 String body = intent0.getStringExtra(AgooConstants.MESSAGE_BODY); Log.e(TAG, "body:" + body); Gson gson = new Gson(); //将接收到的body信息装换成UmengClickBean UmengClickBean bean = gson.fromJson(body, UmengClickBean.class); //ExtraBean包含三个字段：type,id,title,根据type跳转相应界面 ExtraBean extraBean = bean.getExtra(); if (null != bean) { int type = extraBean.getType(); Intent intent = null; /** * 判断栈中是否有MainActivity，有则意味着程序已启动，否则没有 */ if (isExistMainActivity(MainActivity.class)) { if (type == 1) { intent = new Intent(this, DetailActivity.class); } else { intent = new Intent(this, ListActivity.class); } } else { intent = new Intent(this, SplashActivity.class); intent.putExtra("tag", 1); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); } intent.putExtra("bean", extraBean); startActivity(intent); finish(); } } @TargetApi(Build.VERSION_CODES.Q) private boolean isExistMainActivity(Class<?> activity) { Intent intent = new Intent(this, activity); ComponentName cmpName = intent.resolveActivity(getPackageManager()); boolean flag = false; if (cmpName != null) { // 说明系统中存在这个activity ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE); List taskInfoList = am.getRunningTasks(10); //这里获取的是APP栈的数量，一般也就两个 ActivityManager.RunningTaskInfo runningTaskInfo = taskInfoList.get(0); // 只是拿当前运行的栈 int numActivities = taskInfoList.get(0).numActivities; for (ActivityManager.RunningTaskInfo taskInfo : taskInfoList) { if (taskInfo.baseActivity.equals(cmpName)) {// 说明它已经启动了 flag = true; break;//跳出循环，优化效率 } } } return flag; }}2.应用在前台时，接收推送，弹框；在后台时存数据，待应用切到前台时再弹框。
在前台时，在umeng 封装类里的setMessageHandler()方法内部，重写某个方法，我们是重写dealWithNotificationMessage()。
UmengHelper.java
public class UmPushHelper { public static final String TAG = "UmPushHelper"; static UmPushHelper umPushHelper; Context context = MyApplacation.getMyApplication(); private PushAgent mPushAgent; public static UmPushHelper getInstance() { if (null == umPushHelper) { umPushHelper = new UmPushHelper(); } return umPushHelper; } /** * 友盟初始化 * * 友盟初始化及相关配置 * 注册 * 通道配置 */ public void init() {// UMConfigure.init(context, "Appkey", "Umeng", UMConfigure.DEVICE_TYPE_PHONE, "Umeng Message Secret"); UMConfigure.setLogEnabled(true);//日志输出，上线关闭 mPushAgent = PushAgent.getInstance(context); mPushAgent.register(new IUmengRegisterCallback() { @Override public void onSuccess(String deviceToken) { //注册成功会返回deviceToken deviceToken是推送消息的唯一标志 Log.i(TAG, "注册成功：deviceToken：--------> " + deviceToken); } @Override public void onFailure(String s, String s1) { Log.e(TAG, "注册失败：--------> " + "s:" + s + ",s1:" + s1); } }); //小米通道 MiPushRegistar.register(context, "xiaomiId", "xiaomiKey"); //华为通道 HuaWeiRegister.register(MyApplacation.getMyApplication()); //魅族通道 MeizuRegister.register(context, "appId", "appKey"); mPushAgent.onAppStart(); //最多展示条数 mPushAgent.setDisplayNotificationNumber(10); //通知或消息接收 setMessageHandler(); //通知点击 setNotificationClickHandler(); } /** * MessageHandler有很多回调方法，根据自己需要选择 */ private void setMessageHandler() { UmengMessageHandler messageHandler = new UmengMessageHandler() { @Override public void dealWithNotificationMessage(Context context, UMessage uMessage) { super.dealWithNotificationMessage(context, uMessage); Log.e(TAG, "um notification msg.extra" + uMessage.extra); try { JSONObject object = new JSONObject(uMessage.extra); int type = object.getInt("type"); Long id = object.getLong("id"); String title = object.getString("title"); ExtraBean bean = new ExtraBean(); bean.setId(id); bean.setType(type); bean.setTitle(title); /** * 应用不在前台时，不弹框，并把推送的数据存起来 * * 在前台时直接弹框 */ if (MyApplacation.getMyApplication().getActivityCount() == 0) { ExtraBeanDao dao = MyApplacation.getMyApplication().getDaoSession().getExtraBeanDao(); dao.insertOrReplace(bean); return; } Intent intent = new Intent(context, NotificationDialogActivity.class); intent.putExtra("bean", bean); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(intent); } catch (JSONException e) { e.printStackTrace(); } } }; PushAgent.getInstance(context).setMessageHandler(messageHandler); } private void setNotificationClickHandler() { /** * 自定义行为的回调处理，参考文档：高级功能-通知的展示及提醒-自定义通知打开动作 * UmengNotificationClickHandler是在BroadcastReceiver中被调用，故 * 如果需启动Activity，需添加Intent.FLAG_ACTIVITY_NEW_TASK * */ UmengNotificationClickHandler notificationClickHandler = new UmengNotificationClickHandler() { @Override public void launchApp(Context context, UMessage msg) { Log.e("umenguuu", "helper launchApp extra:" + msg.extra.toString()); super.launchApp(context, msg); } @Override public void openUrl(Context context, UMessage msg) { Log.e("umenguuu", "helper openUrl extra:" + msg.extra.toString()); super.openUrl(context, msg); } @Override public void openActivity(Context context, UMessage msg) { //获取extra字段值 Log.e("umenguuu", "helper openActivity extra:" + msg.extra.toString()); try { JSONObject object = new JSONObject(msg.extra); int type = object.getInt("type"); long id = object.getLong("id"); String title = object.getString("title"); ExtraBean extraBean = new ExtraBean(); extraBean.setId(id); extraBean.setType(type); extraBean.setTitle(title); Intent intent; Log.e("umenguuu", "helper type:" + type); /** * type=1 跳详情界面 * type=2 跳列表界面 */ if (type == 1) { intent = new Intent(context, DetailActivity.class); } else { intent = new Intent(context, ListActivity.class); } intent.putExtra("bean", extraBean); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(intent); } catch (JSONException e) { e.printStackTrace(); } } @Override public void dealWithCustomAction(Context context, UMessage msg) { Log.e("umenguuu", "helper dealWithCustomAction extra:" + msg.extra.toString()); } }; //使用自定义的NotificationHandler PushAgent.getInstance(context).setNotificationClickHandler(notificationClickHandler); }}
应用在前台还是在后台的判断是在MyApplication.java内部, mActivityCount==0时，意味着应用在后台。
public class MyApplacation extends Application { public static final String TAG = "MyApplication"; private static MyApplacation app; private DaoSession daoSession; private int mActivityCount = 0; public static MyApplacation getMyApplication() { return app; } @Override public void onCreate() { super.onCreate(); app = this;// UmPushHelper.getInstance().init();//初始化友盟推送 initDb();//初始化数据库 /** * 通过mActivityCount判断当前应用在前台还是在后台 */ registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() { @Override public void onActivityCreated(Activity activity, Bundle savedInstanceState) { Log.d(TAG, "onActivityCreated"); } @Override public void onActivityStarted(Activity activity) { Log.d(TAG, "onActivityStarted"); mActivityCount++; } @Override public void onActivityResumed(Activity activity) { Log.d(TAG, "onActivityResumed"); /** * 后台切前台的时候，判断是否有未弹框的通知消息，如果有遍历弹框 * * 说明：此处设计的是弹框叠加，如果只弹一个框，luanchMode="SingleTop" * 并在NotificationDialogActivity内的onNewIntent()方法内处理逻辑 * */ List list = getDaoSession().getExtraBeanDao().queryBuilder().list(); if (null != list && list.size() > 0) { for (ExtraBean bean : list) { Intent intent = new Intent(activity, NotificationDialogActivity.class); intent.putExtra("bean", bean); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//必须 activity.startActivity(intent); } getDaoSession().getExtraBeanDao().deleteAll(); } } @Override public void onActivityPaused(Activity activity) { Log.d(TAG, "onActivityPaused"); } @Override public void onActivityStopped(Activity activity) { Log.d(TAG, "onActivityStopped"); mActivityCount--; if (mActivityCount == 0) {//此时切后台 } } @Override public void onActivitySaveInstanceState(Activity activity, Bundle outState) { Log.d(TAG, "onActivitySaveInstanceState"); } @Override public void onActivityDestroyed(Activity activity) { Log.d(TAG, "onActivityDestroyed"); } }); } public int getActivityCount(){ return mActivityCount; } public void initDb() { MyOpenHelper helper = new MyOpenHelper(this, "test.db", null); //对数据库库加密// Database db = helper.getEncryptedWritableDb(UUID); //不加密,uyi SQLiteDatabase db = helper.getWritableDatabase(); DaoMaster daoMaster = new DaoMaster(db); daoSession = daoMaster.newSession(); } public DaoSession getDaoSession() { return daoSession; }} 弹框：用一个透明activity实现假弹框，叠加弹框默认lanuchMode即可，只弹一个lanuchMode="singleTop",并重写onNewIntent()方法。
public class NotificationDialogActivity extends AppCompatActivity { private ExtraBean extraBean; private TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dialog_show_notification); textView = findViewById(R.id.textview); TextView tvCancel = findViewById(R.id.tv_cancel); TextView tvConfirm = findViewById(R.id.tv_confirm); extraBean = (ExtraBean) getIntent().getSerializableExtra("bean"); textView.setText(extraBean.getTitle()); final int type = extraBean.getType(); tvConfirm.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent=null; if (type == 1) { intent = new Intent(NotificationDialogActivity.this, DetailActivity.class); } else { intent = new Intent(NotificationDialogActivity.this, ListActivity.class); } intent.putExtra("bean", extraBean); startActivity(intent); finish(); } }); tvCancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finish(); } }); } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); extraBean = (ExtraBean) intent.getSerializableExtra("bean"); textView.setText(extraBean.getTitle()); }}其他类在demo里，demo下载地址：https://github.com/274800562/umengtest.git
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