package com.sn.okhttp_8;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;

import okhttp3.Cache;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

private TextView mText_tv;
private static final int SUCCESS = 993;
private static final int FALL = 814;
Handler handler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        switch (msg.what) {
            //載入網路成功,進行UI的更新
            case SUCCESS:
                String text = (String) msg.obj;
                mText_tv.setText(text);
                break;
            //當載入網路失敗,執行的邏輯程式碼
            case FALL:
                Toast.makeText(MainActivity.this, "不好意思,李紅展太帥了,造成網路異常", Toast.LENGTH_SHORT).show();
                break;
            default:
                break;
        }
    }
};

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    //對控制元件進行初始化
    initView();
}

private void initView() {
    mText_tv = (TextView) findViewById(R.id.text_tv);
}

public void okhttp_ok(View viwe) {
    new Thread() {
        public void run() {
            OkHttpClient client = new OkHttpClient.Builder().build();
            Request request = new Request.Builder().url(Path).build();
            Response response = null;
            try {
                response = client.newCall(request).execute();
                //重定向
                System.out.println("Response 1 response:          " + response);
                System.out.println("Response 1 cache response:    " + response.cacheResponse());
                System.out.println("Response 1 network response:  " + response.networkResponse());
                String string = response.body().string();
                //通過handler物件,把資料傳入到主執行緒,進行UI更新
                Message obtain = Message.obtain();
                obtain.obj = string;
                obtain.what = SUCCESS;
                handler.sendMessage(obtain);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }.start();
}

/**
 * 通過點選事件,非同步網路請求,拿到String資料
 *
 * @param view
 */
public void okhttp_text(View view) {
 

// Toast.makeText(MainActivity.this, “哈哈哈哈”, Toast.LENGTH_SHORT).show();
//建立oKHttpClient的物件
OkHttpClient okHttpClient = new OkHttpClient();
//建立Request.Builder.
Request.Builder builder = new Request.Builder();
//使用 Request.Builder 物件,呼叫Url方法,傳入網路路徑
Request.Builder url = builder.url(Path);
//使用 Request.Builder物件,呼叫build方法構建request物件.
Request request = url.build();
//建立一個Call物件,引數就request物件.
Call call = okHttpClient.newCall(request);
//使用call物件,呼叫enqueue方法,請求加入排程(非同步載入)
call.enqueue(new Callback() {
@Override//當請求失敗時,呼叫此方法
public void onFailure(Call call, IOException e) {
handler.sendEmptyMessage(FALL);
}

        @Override//當你們請求成功的時候,呼叫此方法.
        public void onResponse(Call call, Response response) throws IOException {
            String string = response.body().string();
            //通過handler物件,把資料傳入到主執行緒,進行UI更新
            Message obtain = Message.obtain();
            obtain.obj = string;
            obtain.what = SUCCESS;
            handler.sendMessage(obtain);
        }
    });
}

/**
 *** B.通過點選事件,非同步網路請求,拿到String資料,並進行本地快取,
 * @param view
 */
public void okhttp_cache(View view) {
    //B.快取大小
    int cacheSize = 10 * 1024 * 1024; // 10 MiB
    //B.建立Cache物件,檔案存放私有目錄   引數:1.私有目錄檔案物件   2.設定快取大小
    Cache cache = new Cache(getCacheDir(), cacheSize);
    //B.建立oKHttpClient的物件,進行本地快取(請求頭,響應頭,內容)
    OkHttpClient okHttpClient = new OkHttpClient.Builder().cache(cache).build();
    Request.Builder builder = new Request.Builder();
    Request.Builder url = builder.url(Path);
    Request request = url.build();
    Call call = okHttpClient.newCall(request);
    call.enqueue(new Callback() {
        @Override//當請求失敗時,呼叫此方法
        public void onFailure(Call call, IOException e) {
            handler.sendEmptyMessage(FALL);
        }
        @Override//當你們請求成功的時候,呼叫此方法.
        public void onResponse(Call call, Response response) throws IOException {
            String string = response.body().string();
            //通過handler物件,把資料傳入到主執行緒,進行UI更新
            Message obtain = Message.obtain();
            obtain.obj = string;
            obtain.what = SUCCESS;
            handler.sendMessage(obtain);
        }
    });
}

}**