LoginActivity 繼承BaseActivity 封裝類登入成功跳轉主頁面

根據網址得出賬號與密碼

import android.content.Intent; import android.content.SharedPreferences; import android.os.Handler; import android.os.Message; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText;

import com.bwie.newsmonth04.base.BaseActivity; import com.bwie.newsmonth04.bean.LoginResult; import com.bwie.newsmonth04.constant.ServerUrl; import com.bwie.newsmonth04.utils.HttpUtils; import com.google.gson.Gson;

public class LoginActivity extends BaseActivity implements View.OnClickListener { public static final int FLAG = 123;

private EditText etUsername;
private EditText etPassword;
private Button btnLogin;

private SharedPreferences sp;

private Handler handler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        switch (msg.what) {
            case FLAG:
                String result = (String) msg.obj;
                Gson gson = new Gson();
                LoginResult loginResult = gson.fromJson(result, LoginResult.class);
                if (loginResult != null) {
                    if (loginResult.getCode() == 0) {
                        sp.edit().putBoolean("is_first", false).commit();
                        Intent intent = new Intent(mContext, HomeActivity.class);
                        startActivity(intent);
                    }
                }
                break;
        }
    }
};

@Override
protected int getContentView() {
    return R.layout.activity_login;
}

@Override
protected void initView() {
    etUsername = findViewById(R.id.et_username);
    etPassword = findViewById(R.id.et_password);
    btnLogin = findViewById(R.id.btn_login);
}

@Override
protected void initData() {
    super.initData();
    sp = getSharedPreferences("config", MODE_PRIVATE);
}

@Override
protected void setListener() {
    super.setListener();
    btnLogin.setOnClickListener(this);
}

@Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.btn_login:
            final String username = etUsername.getText().toString().trim();
            final String password = etPassword.getText().toString();
 

// if (username.equals())

            new Thread(new Runnable() {
                @Override
                public void run() {
                    String url = ServerUrl.LOGIN_URL + "mobile=" + username + "&password=" + password;
                    String result = HttpUtils.getStringFromHttp(url);
                    Message msg = Message.obtain();
                    msg.what = FLAG;
                    msg.obj = result;
                    handler.sendMessage(msg);
                }
            }).start();


            break;
    }
}

}

LoginResult類

package com.bwie.newsmonth04.bean;

/**

• Created by eric on 2018/9/20. */

public class LoginResult { private String msg; private int code;

public String getMsg() {
    return msg;
}

public void setMsg(String msg) {
    this.msg = msg;
}

public int getCode() {
    return code;
}

public void setCode(int code) {
    this.code = code;
}

}

佈局檔案

<EditText
    android:id="@+id/et_username"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="請輸入使用者名稱" />

<EditText
    android:id="@+id/et_password"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="請輸入密碼" />

<Button
    android:id="@+id/btn_login"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="登入" />