这是我的广播接收器。我已经添加了所有必需的详细信息,但仍然无法正常工作
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;
import android.widget.Toast;
public class myBroadCastReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context, final Intent intent) {
ConnectivityManager connectivityManager =
(ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE );
NetworkInfo activeNetInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
boolean isConnected = activeNetInfo != null && activeNetInfo.isConnectedOrConnecting();
if (isConnected)
Log.i("NET", "Connected" + isConnected);
else
Log.i("NET", "Not Connected" + isConnected);
}
}
和清单文件,我已经添加了所需的所有详细信息,但仍然无法正常工作
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.mybroadcastreceiver">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<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"
tools:ignore="GoogleAppIndexingWarning">
<receiver android:name=".myBroadCastReceiver" android:enabled="true">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE"></action>
</intent-filter>
</receiver>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
我已经完成了所有工作,但是这没有用,任何想法都可能丢失,我没有对MainActivity.java
进行更改,这可能是原因吗?
定位到Android 7.0及更高版本的应用必须使用Context.registerReceiver(BroadcastReceiver, IntentFilter)
注册CONNECTIVITY_ACTION广播。 Context.registerReceiver(BroadcastReceiver, IntentFilter)
您无法将其注册到清单中,因为这样,每当用户的连接性发生变化时,您的应用就会唤醒,这对于性能和电池寿命非常不利。