android - 在 android 手机重启时启动我的服务

Question

我正在制作持续跟踪用户位置的应用程序，到目前为止，我已经能够在位置更改时成功接收到它的纵坐标，但是如果他重新启动手机，我将无法在没有用户的情况下再次启动我的服务打开应用程序。

• list .xml

  <?xml version="1.0" encoding="utf-8"?>
  <manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.aa.gpsdemo"
  android:versionCode="1"
  android:versionName="1.0" >
  
  <uses-sdk
  android:minSdkVersion="8"
  android:targetSdkVersion="16" />
  
  <uses-permission android:name="android.permission.INTERNET"/>
  
  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
  <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
  <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>   
  <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
  <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
  
  
  <application
  android:allowBackup="true"
  android:icon="@drawable/ic_launcher"
  android:label="@string/app_name"
  android:theme="@style/AppTheme" >
  <activity
      android:name="com.aa.gpsdemo.MainActivity"
      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=".MyService" android:label="My Service">
      <intent-filter>
      <action android:name="com.aa.gpsdemo.StartMyServiceAtBootReciever" />
      </intent-filter>
  </service>
  <receiver
      android:name=".receiver.StartMyServiceAtBootReceiver"
      android:enabled="true"
      android:exported="true"
      android:label="StartMyServiceAtBootReceiver">
      <intent-filter>
          <action android:name="android.intent.action.BOOT_COMPLETED" />
      </intent-filter>
  </receiver> 
      </application>
  
      </manifest>
  

• StartMyServiceAtBootReciever.java

  package com.aa.gpsdemo;
  import android.content.BroadcastReceiver;
  import android.content.Context;
  import android.content.Intent;
  
  public class StartMyServiceAtBootReciever extends BroadcastReceiver {
  
  @Override
  public void onReceive(Context context, Intent intent) {
      if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
      Intent serviceIntent = new Intent("com.aa.gpsdemo.BackgroundService");
      context.startService(serviceIntent);
        }
      }
   } 
  

• 后台服务.java

  package com.aa.gpsdemo;
  
  import android.app.Service;
  import android.content.Intent;
  import android.content.Context;
  import android.os.IBinder;
  import android.location.LocationManager;
  import android.os.Bundle;
  import android.os.StrictMode;
  import android.util.Log;
  import android.widget.Toast;
  import android.location.Criteria;
  
  public class BackgroundService extends Service {
  
  private static NewLocationListener mylistner=null;
  private final static String TAG = "MainActivity";
  private Context context = null;
  
  @Override
  public IBinder onBind(Intent arg0) {
  // TODO Auto-generated method stub
  return null;
  }
  
  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
  
  if (android.os.Build.VERSION.SDK_INT > 9) {
      StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
      StrictMode.setThreadPolicy(policy);
  }
  
  mylistner = new NewLocationListener(context);
  Criteria criteria = new Criteria();
  criteria.setAccuracy(Criteria.ACCURACY_FINE);
  criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
  criteria.setCostAllowed(true);
  LocationManager locManager = (LocationManager)     context.getSystemService(Context.LOCATION_SERVICE);
  String bestProvider=locManager.getBestProvider(criteria, true);
  locManager.requestLocationUpdates(bestProvider,1000, 5, mylistner);
  
  
  
  }
  
      }
  

在我出错的地方，如果您能在重启手机时提供任何帮助，我将不胜感激。我的 demoapp 已停止，我尝试将 toast 放在接收器上，但该 toast 目前也没有出现

Answer 1

确保你在 AndroidManifest 文件中有权限:

  <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

将此更改为:

@Override
public void onReceive(Context context, Intent intent) {
    Intent serviceIntent = new Intent(context,BackgroundService.class);
    startService(serviceIntent);
    }