我有一项服务,我想用它来远程管理我的设备。当它启动时,它应该连接到服务器,然后从那里接收命令。当我正常启动我的应用程序时,我使用
启动MainActivity我的服务 startService(new Intent(this, service.class));
这完全没问题。但是,当autostart.class启动服务时,它会报告它无法解析主机。所以我只是让它每秒重试一次,直到它连接,但即使网络连接正常并且工作正常,也永远无法连接。当我点击应用程序图标然后,它会杀死旧服务,启动一个新服务,连接,一切都很好,但不是自动启动。这项服务在启动时没有任何权限,但我对此并不确定。
autostart.class
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class autostart extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent) {
if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
Intent pushIntent = new Intent(context, service.class);
pushIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startService(pushIntent);
Log.i("Boot Receiver", "Service started");
}
}
}
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="my.app.rtl"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="21"
android:targetSdkVersion="25" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".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>
<activity
android:theme="@style/Theme.Transparent"
android:name=".DialogActivity"
android:label="@string/app_name" >
</activity>
<receiver android:name=".autostart">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<receiver
android:name=".Darclass"
android:permission="android.permission.BIND_DEVICE_ADMIN" >
<meta-data
android:name="android.app.device_admin"
android:resource="@xml/my_admin" />
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
</intent-filter>
</receiver>
<service android:enabled="true" android:isolatedProcess="false" android:persistent="true" android:name=".service" />
</application>
</manifest>
答案 0 :(得分:0)
一般情况下,我会检查与此连接(虽然不推荐使用getAllNetworkInfo)
public boolean areWeConnected(){
/**
* isConnected()
* Indicates whether network connectivity exists and it is possible to establish connections and pass data.
* Always call this before attempting to perform data transactions.
*/
boolean haveConnectedWifi = false;
boolean haveConnectedMobile = false;
ConnectivityManager cm = (ConnectivityManager) getSystemService(getApplicationContext().CONNECTIVITY_SERVICE);
NetworkInfo[] netInfo = cm.getAllNetworkInfo();
for (NetworkInfo ni : netInfo) {
if (ni.getTypeName().equalsIgnoreCase("WIFI"))
if (ni.isConnected()){
haveConnectedWifi = true;
break;
}
if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
if (ni.isConnected()){
haveConnectedMobile = true;
break;
}
}
return haveConnectedWifi || haveConnectedMobile;
}