我無法看到應用程序是否成功登錄

Question

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 


    txtUserName=(EditText)this.findViewById(R.id.txtUname); 
    txtPassword=(EditText)this.findViewById(R.id.txtPwd); 
    btnLogin=(Button)this.findViewById(R.id.btnLogin); 

      Button btnLogin=(Button)this.findViewById(R.id.Button01); 
     btnLogin.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       if((txtUserName.getText().toString()).equals(txtPassword.getText().toString())){ 
         Toast.makeText(LoginappActivity.this, "Login Successful",Toast.LENGTH_LONG).show(); 
       } 
       else 
       { 
         Toast.makeText(LoginappActivity.this, "Invalid Login",Toast.LENGTH_LONG).show(); 
       } 
       } 
      } 
     ); 

      Button next = (Button) findViewById(R.id.Button01); 
      next.setOnClickListener(new View.OnClickListener() { 

       public void onClick(View view) { 
       Intent myIntent = new Intent(view.getContext(), AddName.class); 
       startActivityForResult(myIntent, 0); 
      }});  
     }  
} 

當應用程序在模擬器中運行時，它已成功編譯，但我不知道是否有成功的登錄或無效登錄。

Answer 1

如果寫入... Else內部按鈕單擊事件。

Button btnLogin=(Button)this.findViewById(R.id.Button01); 
     btnLogin.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       if((txtUserName.getText().toString()).equals(txtPassword.getText().toString())){ 
         Toast.makeText(LoginappActivity.this, "Login Successful",Toast.LENGTH_LONG).show(); 
       } 
       else 
       { 
         Toast.makeText(LoginappActivity.this, "Invalid Login",Toast.LENGTH_LONG).show(); 
       } 
       } 
      } 
     }); 

Answer 2

您需要將此代碼放入Login按鈕的onClickListner中。修改的頌歌應該是

​​