com.bruce.study.demo.studydata.demos60.httpclient.MyHttpClientActivity.java Source code

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Here is the source code for com.bruce.study.demo.studydata.demos60.httpclient.MyHttpClientActivity.java

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/*
 * BruceHurrican
 * Copyright (c) 2016.
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 *    This document is Bruce's individual learning the android demo, wherein the use of the code from the Internet, only to use as a learning exchanges.
 *   And where any person can download and use, but not for commercial purposes.
 *   Author does not assume the resulting corresponding disputes.
 *   If you have good suggestions for the code, you can contact BurrceHurrican@foxmail.com
 *   Bruce'sandroiddemo, ?????
 *   ?, ?
 *   ??
 *   ???BurrceHurrican@foxmail.com
 */

package com.bruce.study.demo.studydata.demos60.httpclient;

import android.os.Bundle;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.bruce.study.demo.R;
import com.bruce.study.demo.base.BaseActivity;
import org.apache.http.util.ByteArrayBuffer;
import org.apache.http.util.EncodingUtils;

import java.io.DataInputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

/**
 *  
 * Created by BruceHurrican on 2015/9/12.
 */
public class MyHttpClientActivity extends BaseActivity {
    private static final String ADDRESS = "http://www.baidu.com";
    private TextView tv_info;
    private ByteArrayBuffer byteArrayBuffer;

    @Override
    public String getTAG() {
        return "MyHttpClientActivity -->";
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.demos60_activity_httpclient);
        Button btn_connect = (Button) findViewById(R.id.btn_connect);
        tv_info = (TextView) findViewById(R.id.tv_info);
        initWorkerHandler("");
        initUIHandler();
        //        getWorkerHandler();
        //        getUIHandler();
        btn_connect.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                MyHttpClientActivity.this.sendWorkerMessageEmpty(0x01);
            }
        });
    }

    @Override
    public void handleWorkerMessage(Message msg) {
        if (msg.what == 0x01) {
            logD("workhandler ?");
            getNetInfo();
        }
    }

    @Override
    public void handleUIMessage(Message msg) {
        if (msg.what == 0x02) {
            logD("UIHandler ?");
            tv_info.setText(EncodingUtils.getString(byteArrayBuffer.toByteArray(), "UTF-8"));
        }
    }

    /**
     * ???
     */
    private void getNetInfo() {
        DataInputStream dataInputStream = null;
        try {
            URL url = new URL(ADDRESS); // ??
            URLConnection urlConnection = url.openConnection(); // http
            // ??
            dataInputStream = new DataInputStream(urlConnection.getInputStream());
            // ??
            //                    DataOutputStream dataOutputStream = new DataOutputStream(urlConnection.getOutputStream())
            // ???
            int temp = 0;
            byteArrayBuffer = new ByteArrayBuffer(1000);
            while ((temp = dataInputStream.read()) != -1) {
                byteArrayBuffer.append(temp);
            }
            // ??
            MyHttpClientActivity.this.sendUIMessageEmpty(0x02);
        } catch (MalformedURLException e) {
            logE(e.toString());
        } catch (IOException e) {
            logE(e.toString());
        } finally {
            try {
                if (dataInputStream != null) {
                    dataInputStream.close();
                }
            } catch (IOException e) {
                logE(e.toString());
            }
        }
    }
}