####Okhttp_using的介绍
####使用Okhttp的同步方案，实例如下：
OkHttpClient client = new OkHttpClient();
public String run(String url) throws IOException {
Request request = new Request.Builder()
.url(url)
.build();
try (Response response = client.newCall(request).execute()) {
return response.body().string();
}
}
####一些注意的点
由于安卓主线程不能进行网络的访问,所以需要再开启一个子线程来进行网络访问，并将结果用Handler来改变UI主线程
###具体开启新线程，并进行网络访问，然后回调给Handler来改变主UI线程：
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
show_json = (TextView) findViewById(R.id.test1);
textView4 = (TextView) findViewById(R.id.textView4);
cityName = (EditText) findViewById(R.id.cityName);
new Thread(showJson).start();
}
Handler handler = new Handler()
{
public void handleMessage(Message msg) {
try {
Thread.sleep(1000);//延迟1秒再执行
} catch (InterruptedException e) {
e.printStackTrace();
}
super.handleMessage(msg);
Bundle data = msg.getData();
String val = data.getString("value");
Gson gson = new Gson();
gsonAnalysis json_class = gson.fromJson(val,gsonAnalysis.class);
String lon = json_class.getLon();
String lat = json_class.getLat();
//Log.d("tag",order_name);
//String order_name = response;
//Log.d("tag",val);
dialog.dismiss();
show_json.setText(lon);
textView4.setText(lat);
}
};
Runnable showJson = new Runnable() {
@Override
public void run() {
OkHttpBase Httpclient = new OkHttpBase();
String response = null;
try {
response = Httpclient.run(url);
Message msg = new Message();
Bundle data = new Bundle();
data.putString("value", response);
msg.setData(data);
handler.sendMessage(msg);
} catch (IOException e) {
e.printStackTrace();
}
}
};
####Gson的封装 具体的流程可以搜一下网上的资源，简单的配置就能够正常使用Gson来随心所欲的控制json格式 ####其他的一些话 由于我的mac电脑的androidstudio模拟器不支持中文输入法，所以我就采用了hashmap 映射的方式来实现输入拼音来正常调用api中中文的部分。大家可以看看