The easiest way to log in and register in history (Bomb backend cloud)

                                    The easiest way to log in and register in history (Bomb backend cloud)

   It’s been almost a year since I’ve been learning Android development. I’ve written many, many times to log in and register. I feel like it takes a long time to write each time, so I’m thinking about how to make it easier. I saw a few great gods use the Bmod backend cloud to do this login and registration. At first, when I saw the name, I felt that it was high-end, so I went to learn it with the mentality of giving it a try. Sure enough, it is really simple, no Say more about the picture above

             First, register an account on Bmob: https://www.bmob.cn/login

             Then create an application in it, please see the development documentation later

             

            

          Not much to say, on the code

         

          log in

public class LoginActivity extends AppCompatActivity implements View.OnClickListener{

    TextView tv_register;
    EditText et_name,et_password;
    Button btn_login;
@Override
protected void onCreate( Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
Bmob.initialize(this, "9d2b932612d7936e4cad1e81168b074d");
tv_register=(TextView)findViewById(R.id.tv_register);
btn_login=(Button)findViewById(R.id.
                                        btn_login);
et_name=(EditText)findViewById(R.id.et_login_username);
et_password=(EditText)findViewById(R.id.et_login_password);
tv_register.setOnClickListener(this);
btn_login.setOnClickListener(this);
}                
                    

    @Override
public void onClick(View v) {
        switch (v.getId()){
            case R.id.tv_register:    
                Intent intent=new Intent(LoginActivity.this,RegistrationActivity.class);
                startActivity(intent);
                break;
            case R.id.btn_login:
                String name = et_name.getText().toString();
                String password = et_password.getText().toString().trim();
                if(name.equals("")||password.equals("")){

                    Toast. makeText (LoginActivity. this, "The account password cannot be empty" , Toast. LENGTH_SHORT ).show() ;
                     return;
                 }

                BmobUser user=new BmobUser();
                user.setUsername(name);
                user.setPassword(password);
user.login(new SaveListener<BmobUser>() {
                    @Override
public void done(BmobUser bmobuser, BmobException e) {
                                    

                        if(e==null){
                            Intent intent=new Intent(LoginActivity.this, MainActivity.class);
                            startActivity(intent);
                        }else{
                            Toast. makeText (LoginActivity. this, "Login failed" , Toast. LENGTH_SHORT ).show() ;
 }
                        
                    }


                });
                break;
}



        

    }
}

            User class inherits BmobUser

       Can write here or not

/**
 * Created by Administrator on 2017/5/14.
 */
public class User extends BmobUser {





}

          register this piece

public class RegistrationActivity extends AppCompatActivity {

    EditText edit_name, edit_password, edit_the_second_password;
    Button btn_registration;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_regisration);
        Bmob.initialize(this, "9d2b932612d7936e4cad1e81168b074d");

        edit_name = (EditText) findViewById(R.id.edit_name);
        edit_password = (EditText) findViewById(R.id.edit_password);
        edit_the_second_password = (EditText) findViewById(R.id.edit_the_second_password);
        btn_registration = (Button) findViewById(R.id.btn_registration);

        btn_registration.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String username = edit_name.getText().toString();
                String password = edit_password.getText().toString();

                if(username.equals("")||password.equals("")){
                    Toast.makeText(RegistrationActivity.this, "输入不能为空", Toast.LENGTH_SHORT).show();
                    return;

                }

                BmobUser user=new BmobUser();
                user.setUsername(username);
                user.setPassword(password);

                user.signUp(new SaveListener<BmobUser>(){
                    @Override
                    public void done(BmobUser s, BmobException e) {
                        if(e==null){
                            Intent intent=new Intent(RegistrationActivity.this,LoginActivity.class);
                            startActivity(intent);
                        }else{
                            Toast.makeText(RegistrationActivity.this, "注册失败", Toast.LENGTH_SHORT).show();
                        }
                    }

                });


            }
        });
    }
}