android登录效能_Android

android登录功能
简单的登录逻辑代码
[1].[代码] [Java]代码跳至 [1]

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packagecom.example.mifi;
 
importjava.util.HashMap;
importjava.util.Map;
 
importorg.json.JSONObject;
 
importandroid.app.Activity;
importandroid.content.Intent;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.view.View.OnClickListener;
importandroid.widget.Button;
importandroid.widget.EditText;
 
importcom.example.mifi.utils.DialogUtil;
importcom.example.mifi.utils.HttpUtil;
 
publicclass Login extendsActivity {
    EditText etName, etPass;
    Button bnLogin, bnCancel;
 
    publicvoid onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);
 
        etName = (EditText) findViewById(R.id.userEditText);
        etPass = (EditText) findViewById(R.id.pwdEditText);
 
        bnLogin = (Button) findViewById(R.id.bnLogin);
        bnCancel = (Button) findViewById(R.id.bnCancel);
 
        bnLogin.setOnClickListener(newOnClickListener() {
            publicvoid onClick(View v) {
                if(!validate())
                    return;
                if(loginPro()) {
                    Intent intent = newIntent(Login.this, Main.class);
                    startActivity(intent);
                    finish();
                    return;
                }
                DialogUtil.showDialog(Login.this,"用户名或密码错误,请重新输入!",false);
            }
 
        });
    }
 
    /**
     * 验证登录帐号
     */
    privateboolean loginPro() {
        String username = etName.getText().toString().trim();
        String password = etPass.getText().toString().trim();
        JSONObject jsonObj;
        try{
            jsonObj = Query(username, password);
            if(jsonObj.getBoolean("success"))
                returntrue;
        }catch(Exception e) {
            DialogUtil.showDialog(this,"服务器响应异常，请稍后再试!",false);
            e.printStackTrace();
        }
        returnfalse;
    }
 
    /**
     * 验证用户名密码
     */
    privateJSONObject Query(String username, String password) throwsException {
        Map<String, String> map = newHashMap<String, String>();
        map.put("username", username);
        map.put("password", password);
        String url = HttpUtil.BASE_URL + "client/login/";
        returnnew JSONObject(HttpUtil.doPost(url, map));
    }
 
    /**
     * 输入为空
     */
    privateboolean validate() {
        String username = etName.getText().toString().trim();
        String password = etPass.getText().toString().trim();
        if("".equals(username)) {
            DialogUtil.showDialog(this,"请输入用户名!",false);
            returnfalse;
        }
        if("".equals(password)) {
            DialogUtil.showDialog(this,"请输入用户密码!",false);
            returnfalse;
        }
        returntrue;
    }
 
}
android登录效能

[1].[代码] [Java]代码 跳至 [1]

[1].[代码] [Java]代码跳至 [1]
