android 自动联网吗,Android判断手机是否联网及自动跳转功能(收藏版)

android欢迎页自动跳转及手机网络检测，具体实现代码如下所示：

在1.2s后从欢迎页(welcome)跳转到登陆页(Login_Activity)，并进行手机网络检测

package com.example.amusic.welcome;

import android.content.Intent;

import android.content.IntentFilter;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import com.example.amusic.monitor.NetworkChangeReceiver;

import com.example.amusic.R;

import java.util.Timer;

import java.util.TimerTask;

public class welcome extends AppCompatActivity {

private final int SKIP_DELAY_TIME = 1200;

private NetworkChangeReceiver networkChangeReceiver;

private IntentFilter intentFilter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_welcome);

//手机网络检测

intentFilter = new IntentFilter();

intentFilter.addAction("android.net.conn.CONNECTIVITY_CHANGE");

networkChangeReceiver = new NetworkChangeReceiver();

registerReceiver ( networkChangeReceiver, intentFilter);

Timer time = new Timer();

TimerTask task = new TimerTask(){

@Override

public void run() {

startActivity(new Intent(welcome.this,Login_Activity.class));

finish();

//onDestroy();

}

};

time.schedule(task, SKIP_DELAY_TIME);

}

protected void onDestroy(){

super.onDestroy();

unregisterReceiver( networkChangeReceiver);

}

}

// An highlighted block

var foo = 'bar';

public class NetworkChangeReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

ConnectivityManager connectivityManager = (ConnectivityManager)

context.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();

if (networkInfo!= null&&networkInfo.isAvailable()) {

Toast.makeText(context, "手机网络已开启！", Toast.LENGTH_SHORT).show();

} else {

Toast.makeText(context, "手机网络未开启！", Toast.LENGTH_SHORT).show();

}

}

}

// An highlighted block

var foo = 'bar';

运行结果

总结

以上所述是小编给大家介绍的Android判断手机是否联网及自动跳转功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对我们网站的支持！

如果你觉得本文对你有帮助，欢迎转载，烦请注明出处，谢谢！

时间： 2019-11-26