用户登录界面

来源：互联网发布：淘宝评论图片福利编辑：程序博客网时间：2024/05/04 03:20

13.

1)圆形图像为一个开源控件---CircleImageView

①布局文件

②为圆形头像添加点击事件

private void initCircleImage(){
    circleImageView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(getContext(), LoginActivity.class);
            startActivityForResult(intent, 0);
        }
    });
}

③实现登陆的布局文件

④实现登陆的逻辑

public class LoginActivity extends AppCompatActivity {

    @ViewInject(R.id.etxt_phone)
    private ClearEditText phoneEdit;

    @ViewInject(R.id.etxt_pwd)
    private ClearEditText passwordEdit;

    @ViewInject(R.id.btn_login)
    private Button loginButton;

    @ViewInject(R.id.toolbar)
    private CNiaoToolBar mToolBar;

    private OkHttpHelper okHttpHelper = OkHttpHelper.getInstance();
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        ViewUtils.inject(this);
        initToolBar();
    }
    private void initToolBar(){
        mToolBar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LoginActivity.this.finish();
            }
        });
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        finish();
    }

    @OnClick(R.id.btn_login)
    public void login(View view){
        String phone = phoneEdit.getText().toString().trim();
        if(TextUtils.isEmpty(phone)){
            ToastUtils.show(this, "请输入手机号码");
            return;
        }
        String pwd = passwordEdit.getText().toString().trim();
        if(TextUtils.isEmpty(pwd)){
            ToastUtils.show(this,"请输入密码");
            return;
        }
        Map<String,String> params = new HashMap<>(2);
        params.put("phone",phone);
        params.put("password", DESUtil.encode(Contants.DES_KEY,pwd));
        okHttpHelper.post(Contants.API.LOGIN, params, new SpotsCallBack<LoginRespMsg<User>>(this) {
            @Override
            public void onSuccess(Response response, LoginRespMsg<User> userLoginRespMsg) {
                ShoppingApplication application =  ShoppingApplication.getInstance();
                application.putUser(userLoginRespMsg.getData(), userLoginRespMsg.getToken());
                if(application.getIntent() == null){
                    setResult(RESULT_OK);
                    finish();
                }else{
                    application.jumpToTargetActivity(LoginActivity.this);
                    finish();
                }
//                setResult(0);
//                finish();

            }
            @Override
            public void onError(Response response, int code, Exception e) {

            }
        });
    }

    @OnClick(R.id.txt_toReg)
    public void register(View view){
        Intent intent = new Intent(LoginActivity.this, RegActivity.class);
        startActivity(intent);
    }
}

⑤登陆成功后，跳转回页面进行处理

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode){
        case 0:
            ToastUtils.show(getContext(), "登陆成功");
            User user = ShoppingApplication.getInstance().getUser();
            ToastUtils.show(getContext(), (user == null) + "2");
            showUser();
    }
}

⑥将布局转换，加载用户头像

private  void showUser(){
    User user = ShoppingApplication.getInstance().getUser();
    ToastUtils.show(getContext(), (user == null) + "");
    if(user ==null){
        mbtnLogout.setVisibility(View.GONE);
        mTxtUserName.setText("点击登录");
    }
    else{
        mbtnLogout.setVisibility(View.VISIBLE);
        if(!TextUtils.isEmpty(user.getLogo_url()))
            Picasso.with(getActivity()).load(Uri.parse(user.getLogo_url())).into(circleImageView);
        mTxtUserName.setText(user.getUsername());
    }
}

⑦为几个选项添加点击事件，实现其逻辑

@OnClick(R.id.txt_my_orders)
public void toMyOrderActivity(View view){
startActivity(new Intent(getActivity(), MyOrderActivity.class));
}

⑧

存储User：

ShoppingApplication application = ShoppingApplication.getInstance();
application.putUser(userLoginRespMsg.getData(), userLoginRespMsg.getToken());

获取User:

User user = ShoppingApplication.getInstance().getUser();

⑨在ShoppingApplication中有

public User getUser(){
    return user;
}
public void putUser(User user, String token){
    this.user = user;
    UserLocalData.putUser(this,user);
    UserLocalData.putToken(this,token);
}

实际上是存储在SharedPreferences中：

public class UserLocalData {
    public static void putUser(Context context,User user){
        String user_json =  JSONUtil.toJSON(user);
        PreferencesUtils.putString(context, Contants.USER_JSON,user_json);
    }
    public static void putToken(Context context,String token){
        PreferencesUtils.putString(context, Contants.TOKEN,token);
    }
    public static User getUser(Context context){
        String user_json= PreferencesUtils.getString(context,Contants.USER_JSON);
        if(!TextUtils.isEmpty(user_json)){
            return  JSONUtil.fromJson(user_json,User.class);
        }
        return  null;
    }
    public static  String getToken(Context context){
        return  PreferencesUtils.getString( context,Contants.TOKEN);
    }
    public static void clearUser(Context context){
        PreferencesUtils.putString(context, Contants.USER_JSON,"");
    }
    public static void clearToken(Context context){
        PreferencesUtils.putString(context, Contants.TOKEN,"");
    }
}

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