android MVP模式网络请求

最新推荐文章于 2024-04-03 07:41:23 发布

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本文介绍了一个基于MVC架构的简单登录系统实现案例。该系统包括User模型用于存放用户名和密码信息，IUserModel接口定义了登录逻辑，UserPresenter作为控制器处理登录流程并与视图交互，LoginActivity作为视图负责展示进度提示及登录结果。

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public class User {
private String name;
private String password;

public User() {
super();
}
public User(String name, String password) {
this.name = name;
this.password = password;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}

}

public interface IUserModel {
public void login(String name, String password, OnLoginListener loginListener);
}

public interface OnLoginListener {
void loginSuccess(User user);
void loginFailed();
}

public class UserModel implements IUserModel {
@Override
public void login(final String name, final String password,
final OnLoginListener loginListener) {
//模拟子线程耗时操作
new Thread()
{
@Override
public void run()
{
try
{
Thread.sleep(2000);
} catch (InterruptedException e)
{
e.printStackTrace();
}
//模拟登录成功
if ("zhy".equals(name) && "123".equals(password))
{
User user = new User();
user.setName(name);
user.setPassword(password);
loginListener.loginSuccess(user);
} else
{
loginListener.loginFailed();
}
}
}.start();
}
}

public class UserPresenter {

private IUserView view;
private IUserModel model;
private Handler mHandler = new Handler();

public UserPresenter(IUserView view) {
this.view = view;
this.model = new UserModel();
}

public void login() {
view.showProgress();
model.login(view.getName(), view.getPassword(), new OnLoginListener() {
@Override
public void loginSuccess(User user) {
//需要在UI线程执行
mHandler.post(new Runnable()
{
@Override
public void run()
{
view.toastSuccess();
view.hideProgress();
}
});
}

@Override
public void loginFailed() {
mHandler.post(new Runnable()
{
@Override
public void run()
{
view.toastFailed();
view.hideProgress();
}
});
}
});
}
}

public interface IUserView {

public String getName();

public String getPassword();

public void showProgress();

public void hideProgress();

public void toastSuccess();

public void toastFailed();

}

public class LoginActivity extends Activity implements OnClickListener,IUserView {

private EditText name,password;
private ProgressBar progress;
private UserPresenter presenter = new UserPresenter(this);

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);

name = (EditText) findViewById(R.id.name);
password = (EditText) findViewById(R.id.password);
progress = (ProgressBar) findViewById(R.id.progress);
findViewById(R.id.submit).setOnClickListener(this);
}

@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.submit:
presenter.login();
break;
}
}

@Override
public String getName() {
return name.getText().toString();
}

@Override
public String getPassword() {
return password.getText().toString();
}

@Override
public void showProgress() {
progress.setVisibility(View.VISIBLE);
}

@Override
public void hideProgress() {
progress.setVisibility(View.GONE);
}

@Override
public void toastSuccess() {
Toast.makeText(this, "登录成功！", Toast.LENGTH_SHORT).show();
}

@Override
public void toastFailed() {
Toast.makeText(this, "登录失败！", Toast.LENGTH_SHORT).show();
}

}