android - 无法读取来自其他应用的通知

Question

我想在 android 中读取来自其他应用程序的通知，但我无法这样做。这些是我实现相同的实现。这是我的 MainActivity.java

package com.example.demoapp;

import androidx.appcompat.app.AppCompatActivity;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Color;
import android.os.Bundle;
import android.text.Html;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    TableLayout tab;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tab = (TableLayout)findViewById(R.id.tab);
         LocalBroadcastManager.getInstance(this).registerReceiver(onNotice, new IntentFilter("Msg"));
    }
    private BroadcastReceiver onNotice= new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            String pack = intent.getStringExtra("package");
            String title = intent.getStringExtra("title");
            String text = intent.getStringExtra("text");
            TableRow tr = new TableRow(getApplicationContext());
            tr.setLayoutParams(new TableRow.LayoutParams( TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
            TextView textview = new TextView(getApplicationContext());
            textview.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT,1.0f));
            textview.setTextSize(20);
            textview.setTextColor(Color.parseColor("#0B0719"));
            textview.setText(Html.fromHtml(pack +"<br><b>" + title + " : </b>" + text));
            tr.addView(textview);
            tab.addView(tr);




        }
    };
}

这是我的 NotificationService 类

package com.example.demoapp;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.service.notification.NotificationListenerService;
import android.service.notification.StatusBarNotification;
import android.util.Log;

import androidx.localbroadcastmanager.content.LocalBroadcastManager;

public class NotificationService extends NotificationListenerService {
    Context context;

    @Override

    public void onCreate() {

        super.onCreate();
        context = getApplicationContext();

    }
    @Override

    public void onNotificationPosted(StatusBarNotification sbn) {


        String pack = sbn.getPackageName();
        String ticker = sbn.getNotification().tickerText.toString();
        Bundle extras = sbn.getNotification().extras;
        String title = extras.getString("android.title");
        String text = extras.getCharSequence("android.text").toString();

        Log.i("Package",pack);
        Log.i("Ticker",ticker);
        Log.i("Title",title);
        Log.i("Text",text);

        Intent msgrcv = new Intent("Msg");
        msgrcv.putExtra("package", pack);
        msgrcv.putExtra("ticker", ticker);
        msgrcv.putExtra("title", title);
        msgrcv.putExtra("text", text);

        LocalBroadcastManager.getInstance(context).sendBroadcast(msgrcv);


    }

    @Override

    public void onNotificationRemoved(StatusBarNotification sbn) {
        Log.i("Msg","Notification Removed");

    }

}

这是我的 AndroidManifest.xml

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:dist="http://schemas.android.com/apk/distribution"
    package="com.example.demoapp">

    <dist:module dist:instant="true" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name="com.example.demoapp.NotificationService"
            android:label="@string/app_name"
            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">

            <intent-filter>

                <action android:name="android.service.notification.NotificationListenerService" />

            </intent-filter>

        </service>
    </application>

</manifest>

这是我的activity.xml

    <?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <TableLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/tab" />
    </ScrollView>
    </LinearLayout>


</androidx.constraintlayout.widget.ConstraintLayout>

我已经在 Android 5 及更高版本中测试了应用程序，它没有收到任何通知详细信息。我在Android 6及以上版本上测试时，授予了应用程序在android中的读取权限。告诉我哪里出错了。

Answer 1

我为您创建了一个小演示，它在 Android API-18 及更高版本的设备上运行良好。

你也可以

1. 阅读所有收到的短信

2. 读取所有来电

3. 电池电量不足和其他通知

这是其他应用显示通知的截图Picture1 Picture2

NotificationService.java

import android.app.Notification;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.service.notification.NotificationListenerService;
import android.service.notification.StatusBarNotification;
import android.util.Log;
import android.support.v4.content.LocalBroadcastManager;

import java.io.ByteArrayOutputStream;


public class NotificationService extends NotificationListenerService {
    Context context;
    @Override
    public void onCreate() {
        super.onCreate();
        context = getApplicationContext();
    }
    @Override
    public void onNotificationPosted(StatusBarNotification sbn) {
        String pack = sbn.getPackageName();
        String ticker ="";
        if(sbn.getNotification().tickerText !=null) {
            ticker = sbn.getNotification().tickerText.toString();
        }
        Bundle extras = sbn.getNotification().extras;
        String title = extras.getString("android.title");
        String text = extras.getCharSequence("android.text").toString();
        int id1 = extras.getInt(Notification.EXTRA_SMALL_ICON);
        Bitmap id = sbn.getNotification().largeIcon;
        Log.i("Package",pack);
        Log.i("Ticker",ticker);
        Log.i("Title",title);
        Log.i("Text",text);
        Intent msgrcv = new Intent("Msg");
        msgrcv.putExtra("package", pack);
        msgrcv.putExtra("ticker", ticker);
        msgrcv.putExtra("title", title);
        msgrcv.putExtra("text", text);
        if(id != null) {
            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            id.compress(Bitmap.CompressFormat.PNG, 100, stream);
            byte[] byteArray = stream.toByteArray();
            msgrcv.putExtra("icon",byteArray);
        }
        LocalBroadcastManager.getInstance(context).sendBroadcast(msgrcv);
    }
    @Override
    public void onNotificationRemoved(StatusBarNotification sbn) {
        Log.i("Msg","Notification Removed");

    }
}

MainActivity.java

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ListView;

import java.util.ArrayList;


public class MainActivity extends Activity {

    ListView list;
    CustomListAdapter adapter;
    ArrayList<Model> modelList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        modelList = new ArrayList<Model>();
        adapter = new CustomListAdapter(getApplicationContext(), modelList);
        list=(ListView)findViewById(R.id.list);
        list.setAdapter(adapter);
        LocalBroadcastManager.getInstance(this).registerReceiver(onNotice, new IntentFilter("Msg"));
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);//Menu Resource, Menu
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.action_settings:
                Intent intent = new Intent(
                        "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS");
                startActivity(intent);
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }
    private BroadcastReceiver onNotice= new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
           // String pack = intent.getStringExtra("package");
            String title = intent.getStringExtra("title");
            String text = intent.getStringExtra("text");
            //int id = intent.getIntExtra("icon",0);

            Context remotePackageContext = null;
            try {
                byte[] byteArray =intent.getByteArrayExtra("icon");
                Bitmap bmp = null;
                if(byteArray !=null) {
                    bmp = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
                }
                Model model = new Model();
                model.setName(title +" " +text);
                model.setImage(bmp);

                if(modelList !=null) {
                    modelList.add(model);
                    adapter.notifyDataSetChanged();
                }else {
                    modelList = new ArrayList<Model>();
                    modelList.add(model);
                    adapter = new CustomListAdapter(getApplicationContext(), modelList);
                    list=(ListView)findViewById(R.id.list);
                    list.setAdapter(adapter);
                }

            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    };
}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="{relativePackage}.${activityClass}" >

    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
    </ListView>
</RelativeLayout>

Androidmanifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.demoapp">

    <uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
    <uses-permission android:name="android.permission.READ_SMS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">
        <activity
            android:name="com.example.demoapp.MainActivity"
            android:configChanges="keyboardHidden|orientation|screenSize"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service
            android:name="com.example.demoapp.NotificationService"
            android:label="@string/app_name"
            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">

            <intent-filter>

                <action android:name="android.service.notification.NotificationListenerService" />

            </intent-filter>

        </service>

    </application>

</manifest>