解决android.os.NetworkOnMainThreadException

以前做项目的时候经常会碰到问题,现在特写一篇关于这方面的问题的解答:

解决android.os.NetworkOnMainThreadException

Caused by: android.os.NetworkOnMainThreadException

      解决方法有两种方法:

1、直接忽视,强制使用(强烈不推荐,但是修改简单)

  

在MainActivity文件的setContentView(R.layout.activity_main)下面加上如下代码

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if (android.os.Build.VERSION.SDK_INT > 9) {
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
}

2、使用Thread、Runnable、Handler (推荐使用)

  

在Runnable中做HTTP请求,不用阻塞UI线程~

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public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.setContentView(R.layout.share_mblog_view);
    new Thread(runnable).start();
}

Handler handler = new Handler(){
    @Override
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        Bundle data = msg.getData();
        String val = data.getString("value");
        Log.i("mylog","请求结果-->" + val);
    }
}

Runnable runnable = new Runnable(){
    @Override
    public void run() {
        //
        // TODO: http request.
        //
        Message msg = new Message();
        Bundle data = new Bundle();
        data.putString("value","请求结果");
        msg.setData(data);
        handler.sendMessage(msg);
    }
}

原文作者: iceskysl

原文地址: http://my.eoe.cn/iceskysl/archive/4382.html


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原文地址:https://www.cnblogs.com/junhey/p/3444022.html