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