MVP的模式在于将原来activity中业务逻辑的部分剥离出来，代码示例如下：
- Account
public class Account {
private String mUsername;
private String mPassword;
public String getmUsername() {
return mUsername;
}
public void setmUsername(String mUsername) {
this.mUsername = mUsername;
}
public String getmPassword() {
return mPassword;
}
public void setmPassword(String mPassword) {
this.mPassword = mPassword;
}
}
- IAccountModel
public interface IAccountModel {
void setAccount(String username, String password);
Account getAccount();
}
- AccountModel
public class AccountModel implements IAccountModel {
private Account mAccount;
public AccountModel(){
mAccount = new Account();
}
@Override
public void setAccount(String username, String password) {
mAccount.setmUsername(username);
mAccount.setmPassword(password);
}
@Override
public Account getAccount() {
return mAccount;
}
}
- AccountPresenter
public class AccountPresenter {
private IAccountModel mAccountModel;
private IAccountView mAccountView;
//view的实现还是在activity中
public AccountPresenter(IAccountView view){
mAccountView = view;
mAccountModel = new AccountModel();
}
//初始化账号显示，该业务逻辑被封装在presenter中
public void initAccount(String username, String password){
mAccountModel.setAccount(username, password);
mAccountView.setUsernameEdit(mAccountModel.getAccount().getmUsername());
mAccountView.setPasswordEdit(mAccountModel.getAccount().getmPassword());
}
}
- IAccountView
public interface IAccountView {
public void setUsernameEdit(String username);
public void setPasswordEdit(String password);
}
- MainActivity
public class MainActivity extends Activity implements IAccountView{
private EditText mUsername;
private EditText mPassword;
private AccountPresenter mAccountPresenter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mUsername = (EditText) findViewById(R.id.username);
mPassword = (EditText) findViewById(R.id.password);
mAccountPresenter = new AccountPresenter(this);
mAccountPresenter.initAccount("fredric", "fredricpassword");
}
@Override
public void setUsernameEdit(String username) {
mUsername.setText(username);
}
@Override
public void setPasswordEdit(String password) {
mPassword.setText(password);
}
}