If statement with booleans android

android, boolean, eclipse, if-statement, java

Solution

i think you can simply use

if(!isSignedIn)
{
  btnSignIn.setText("SignIn");
}
else
{       
  btnSignIn.setText(message);
}

the way you followed is also correct i didn't find any mistake in except you are using extra bracket in condition `if(isSignedIn == false))`

Problem

I have been having a problem with a Boolean in an if statement all day and it is really starting to irritate me now!! I have looked at other Android threads on here and the solutions just don't seem t work. My code started off like this: ``` public class MainActivity extends Activity { public static boolean isSignedIn = false; public final static String USERNAME_MESSAGE = "com.example.libnoise.MESSAGE"; Button btnSignIn; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btnSignIn = (Button) findViewById(R.id.btnSignIn); Intent intent = getIntent(); String message = intent.getStringExtra(PlayZone.USERNAME_MESSAGE); if(isSignedIn == false)) { btnSignIn.setText("SignIn"); } else { btnSignIn.setText(message); } } ``` Then I had a thought that made it's not like other languages and I only need one "=" sign so I had it as this: ``` if(isSignedIn = false) { btnSignIn.setText("SignIn"); } else { btnSignIn.setText(message); } ``` That didn't work and that's when I started looking online, after finding a previous thread on here changed it to the following: ``` if("false".equals(isSignedIn)) { btnSignIn.setText("SignIn"); } else { btnSignIn.setText(message); } ``` Now that doesn't look right to me in the first place but hoped it would work and it didn't. As this is the MainActivity it loads first however since I added all this, the app crashes before it will even load when I take out the if statement it work as expected. Any ideas?

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