直播平台怎么搭建Android开发之获取通知栏的内容

MyNotifiService.java

package com.qfy.getnotifiservice;
 
import android.annotation.SuppressLint;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Environment;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.service.notification.NotificationListenerService;
import android.service.notification.StatusBarNotification;
import android.util.Log;
import android.widget.Toast;
 
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
 
@SuppressLint("OverrideAbstract")
public class MyNotifiService extends NotificationListenerService {
 
    private BufferedWriter bw;
    private SimpleDateFormat sdf;
    private MyHandler handler = new MyHandler();
    private String nMessage;
    private String data;
    Handler mHandler = new Handler(Looper.getMainLooper()) {
        @Override
        public void handleMessage(Message msg) {
            String msgString = (String) msg.obj;
            Toast.makeText(getApplicationContext(), msgString, Toast.LENGTH_LONG).show();
        }
    };
 
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.i("KEVIN", "Service is started" + "-----");
        data = intent.getStringExtra("data");
        return super.onStartCommand(intent, flags, startId);
    }
 
    @Override
    public void onNotificationPosted(StatusBarNotification sbn) {
        //        super.onNotificationPosted(sbn);
        try {
            //有些通知不能解析出TEXT内容，这里做个信息能判断
            if (sbn.getNotification().tickerText != null) {
                SharedPreferences sp = getSharedPreferences("msg", MODE_PRIVATE);
                nMessage = sbn.getNotification().tickerText.toString();
                Log.e("KEVIN", "Get Message" + "-----" + nMessage);
                sp.edit().putString("getMsg", nMessage).apply();
                Message obtain = Message.obtain();
                obtain.obj = nMessage;
                mHandler.sendMessage(obtain);
                init();
                if (nMessage.contains(data)) {
                    Message message = handler.obtainMessage();
                    message.what = 1;
                    handler.sendMessage(message);
                    writeData(sdf.format(new Date(System.currentTimeMillis())) + ":" + nMessage);
                }
            }
        } catch (Exception e) {
            Toast.makeText(MyNotifiService.this, "不可解析的通知", Toast.LENGTH_SHORT).show();
        }
 
    }
 
    private void writeData(String str) {
        try {
//            bw.newLine();
//            bw.write("NOTE");
            bw.newLine();
            bw.write(str);
            bw.newLine();
//            bw.newLine();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
    private void init() {
        sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            FileOutputStream fos = new FileOutputStream(newFile(), true);
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            bw = new BufferedWriter(osw);
        } catch (IOException e) {
            Log.d("KEVIN", "BufferedWriter Initialization error");
        }
        Log.d("KEVIN", "Initialization Successful");
    }
 
    private File newFile() {
        File fileDir = new File(Environment.getExternalStorageDirectory().getPath() + File.separator + "ANotification");
        fileDir.mkdir();
        String basePath = Environment.getExternalStorageDirectory() + File.separator + "ANotification" + File.separator + "record.txt";
        return new File(basePath);
 
    }
 
 
    class MyHandler extends Handler {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case 1:
//                    Toast.makeText(MyService.this,"Bingo",Toast.LENGTH_SHORT).show();
            }
        }
 
    }
}

再看下mainactivity.java

package com.qfy.getnotifiservice;
 
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.provider.Settings;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
 
import com.gionee.notificationmonitor.R;
 
public class MainActivity extends AppCompatActivity {
 
    private EditText editText;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button = findViewById(R.id.button);
        Button button2 = findViewById(R.id.button2);
        Button button3 = findViewById(R.id.button3);
        editText = findViewById(R.id.editText);
        Intent  intent = new Intent(MainActivity.this, MyNotifiService.class);//启动服务
        startService(intent);//启动服务
        final SharedPreferences sp = getSharedPreferences("msg", MODE_PRIVATE);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String getMsg = sp.getString("getMsg", "");
                if (!TextUtils.isEmpty(getMsg)){
                    editText.setText(getMsg);
                }
            }
        });
        button2.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP_MR1)
            @Override
            public void onClick(View v) {
                //打开监听引用消息Notification access
                Intent intent_s = new Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS);
                startActivity(intent_s);
            }
        });
        button3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent_p = new Intent(Settings.ACTION_APPLICATION_SETTINGS);
                startActivity(intent_p);
 
            }
        });
    }
}
 

再看下布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
 
    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="输入" />
 
    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="获取收到的内容" />
 
    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="开启通知监听服务" />
 
    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="开启数据读写权限" />
 
</LinearLayout>

记得服务要在xml里面注册

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gionee.notificationmonitor">
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
    <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="com.qfy.getnotifiservice.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
 
        <service
            android:name="com.qfy.getnotifiservice.MyNotifiService"
            android:priority="1000"
            android:label="通知监控"
            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
            <intent-filter>
                <action      android:name="android.service.notification.NotificationListenerService" />
            </intent-filter>
        </service>
    </application>
 
</manifest>