oKhttp第三方登录

//实现接口，实现接口方法
public class MainActivity extends AppCompatActivity implements View.OnClickListener,IView {

    private static final String TAG = "MainActivity";

    private EditText etUserName;
    private EditText etpassword;
    private Button btnLogin;

    //p层对象

    private LoginPresenter presenter;
    //内存泄漏
    private RefWatcher refWatcher;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        etUserName = (EditText) findViewById(R.id.edit_username);
        etpassword = (EditText) findViewById(R.id.edit_password);
        btnLogin = (Button) findViewById(R.id.btn_login);

        //初始化p层
        presenter = new LoginPresenter();
        presenter.attachView(this);

        btnLogin.setOnClickListener(this);

        //内存泄漏
        refWatcher= BaseApplication.getRefWatcher(this);
        refWatcher.watch(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.btn_login:

                String username= etUserName.getText().toString().trim();
                String password= etpassword.getText().toString().trim();
                presenter.login(username,password);
                 break;
        }
    }

    //登录成功的方法
    @Override
    public void success(String message) {

        Log.i(TAG,"success:"+message);
    }

    //登录失败的方法
    @Override
    public void failed(String message) {

        Log.i(TAG,"failed:"+message);
    }
    //销毁内存泄漏
    @Override
    protected void onDestroy() {
        super.onDestroy();
    }
}
//M层，网络请求
public class OkHttpUtils {

    private OkHttpClient client;
    private static volatile OkHttpUtils instance;
    public OkHttpUtils(){
        //创建OKHttpClient对象
        client = new OkHttpClient();
    }
    //创建静态方法
    //单例模式
    public static OkHttpUtils getInstance(){
        if(instance == null){
            synchronized (OkHttpUtils.class){
                if(null==instance){
                    instance = new OkHttpUtils();
                }
            }
        }
        return instance;
    }
    // okhttp封装的get请求
    public void get(String url, Map<String, String> map, final ResultCallBack resultCallBack){
        StringBuffer buffer = new StringBuffer();
        buffer.append(url).append("?");
        for (Map.Entry<String, String> entry :map.entrySet()) {
            buffer.append(entry.getKey())
                    .append("=")
                    .append(entry.getValue())
                    .append("&");
        }
        buffer.deleteCharAt(buffer.lastIndexOf("&"));
        Log.i(TAG, "url:" + buffer);
        // 2.构建Request对象
        final Request request = new Request.Builder()
                .get()
                .url(buffer.toString())
                .build();
        // 3.创建一个Call对象
        Call call = client.newCall(request);
        // 4. OKHttp提供的Callback回调接口
        call.enqueue(new Callback() {
            // 请求失败的回调方法
            @Override
            public void onFailure(Call call, IOException e) {
                // 在子线程中返回
                resultCallBack.onFailed(e.getMessage());
            }
            // 请求成功的回调方法
            @Override
            public void onResponse(Call call, Response response) throws IOException {
                // 在子线程中返回
                String result = response.body().string();
                // 用我们自己的回调方法
                resultCallBack.onSuccess(result);
            }
        });
    }
}
//获取网络数据成功失败的接口
public interface ResultCallBack {
    //请求成功方法
    void onSuccess(String message);
    //请求失败方法
    void onFailed(String error);
}

//V
public interface IView {
    //请求成功方法
    void onSuccess(String message);
    //请求失败方法
    void onFailed(String error);
}
//P
public class LoginPresenter {
    private IView iv;

    public void attachView(IView iv) {
        this.iv = iv;
    }

    //创建登录方法
    public void login(String name,String password){
        //创建集合map存放数据
        Map<String,String> map = new HashMap<>();
        map.put("mobile",name);
        map.put("password",password);
        //创建请求数据的工具类(OkHttpUtils);
        OkHttpUtils.getInstance().get("http://120.27.23.105/user/login", map, new ResultCallBack() {
            //请求成功
            @Override
            public void onSuccess(String message) {
                 iv.onSuccess(message);
            }
             //请求失败
            @Override
            public void onFailed(String error) {
                iv.onFailed(error);
            }
        });
    }
}
//Application
public class BaseApplication extends Application{
    private RefWatcher refWatcher;
    public static RefWatcher getRefWatcher(Context context) {
        BaseApplication application = (BaseApplication) context.getApplicationContext();
        return application.refWatcher;
    }
    @Override
    public void onCreate() {
        super.onCreate();
        refWatcher = LeakCanary.install(this);
    }
}
//XMl
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="chendemin.bwei.com.okhttpdemo1.MainActivity">
    <EditText
        android:id="@+id/edit_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="输入账号"/>
    <EditText
        android:id="@+id/edit_password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="输入密码"/>
    <Button
        android:id="@+id/btn_login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="登录"/>
</LinearLayout>
//权限
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
android:name=".base.BaseApplication"
//依赖
compile 'com.squareup.okhttp3:okhttp:3.9.0'
compile 'com.google.code.gson:gson:2.8.1'
debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'