package com.example.broadcast;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.widget.TextView;
import androidx.annotation.Nullable;
public class NetworkActivity extends Activity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.act_power);
TextView textView = findViewById(R.id.txt_power);
BroadcastReceiver connectionReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
NetworkInfo mobNetInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
NetworkInfo wifiNetInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (!mobNetInfo.isConnected() && !wifiNetInfo.isConnected()) {
textView.setText("无网络连接");
// unconnect network
} else if (wifiNetInfo.isConnected()) {
textView.setText("已连接WIFI");
// connect wifi
} else {
textView.setText("已连接移动网络");
}
}
};
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(connectionReceiver, intentFilter);
}
}
原文:https://www.cnblogs.com/codezhou/p/14736975.html