Question

我正在启动一项服务，该服务会检测用户何时启动应用程序并显示带有应用程序名称的Toast。

package com.xylon.serviceexample;

import java.util.List;

import android.app.ActivityManager;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

public class MyService extends Service{

    private static final String TAG = "MyService";

    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }

    @Override
    public void onCreate() {

        Toast.makeText(this, "Congrats! MyService Created", Toast.LENGTH_LONG).show();
        Log.d(TAG, "onCreate");
    }

    @Override
    public void onStart(Intent intent, int startId) {
        Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show();
        ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningAppProcessInfo> runningAppProcessInfo = am.getRunningAppProcesses();
        for (int i = 0; i < runningAppProcessInfo.size(); i++) {

            Log.v("Proc: ", runningAppProcessInfo.get(i).processName);
            Toast.makeText(this, runningAppProcessInfo.get(i).processName, Toast.LENGTH_LONG).show();
        }




        Log.d(TAG, "onStart");  
    }

    @Override
    public void onDestroy() {
        Toast.makeText(this, "MyService Stopped", Toast.LENGTH_LONG).show();
        Log.d(TAG, "onDestroy");
    }
}

我是否将ActivityManager代码放在正确的位置？它显示了服务启动时已在设备上运行的应用程序。

Answer 1

您可以使用READ LOGS执行此操作，然后从logcat跟踪..

在清单文件中添加：

android.permission.READ_LOGS

代码：

try
    {
        Process mLogcatProc = null;
        BufferedReader reader = null;
        mLogcatProc = Runtime.getRuntime().exec(new String[]{"logcat", "-d"});

        reader = new BufferedReader(new InputStreamReader(mLogcatProc.getInputStream()));

        String line;
        final StringBuilder log = new StringBuilder();
        String separator = System.getProperty("line.separator"); 

        while ((line = reader.readLine()) != null)
        {
            log.append(line);
            log.append(separator);
        }
        String w = log.toString();
        Toast.makeText(getApplicationContext(),w, Toast.LENGTH_LONG).show();
    }
    catch (Exception e) 
    {
        Toast.makeText(getApplicationContext(), e.getMessage(), Toast.LENGTH_LONG).show();
    }

但是从API 16开始，google限制了这个东西，所以现在我们无法追踪这个东西。

用于检测应用程序启动的android服务

1 个答案: