Question

In my Android Application I have two Activities.

One is GmapsActivity and one is GmapsActivity1 and two layouts login.xml and main.xml

By default I want to load login.xml and then in this I want to call main.xml on different conditions of password. But when I call GmapsActivity1 application crashed. Here is my code sample for GmapsActivity

public class GMapsActivity extends MapActivity {

EditText password;
Button   login;


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

        password=(EditText)findViewById(R.id.pass);
        login=(Button)findViewById(R.id.logbtn);

        login.setOnClickListener(new View.OnClickListener(){
            public void onClick(View v)
            {
                Intent myIntent = null;
                if(password.getText().toString().equals("admin")) {
                myIntent = new Intent(getApplicationContext(), GMapsActivity.class);
                startActivity(myIntent);
                } else {
                Toast.makeText(getBaseContext(), "invalid password - try again",  Toast.LENGTH_SHORT).show();
                }

            }

        });

    }



    @Override
    protected boolean isRouteDisplayed() {

        return false;
    }


    }

How could I solve this?

Answer 1

okay so you have

GMapsActivity.java with login.xml and GmapsActivity1 with main.xml

first of all change your manifeste like this

<application
        android:icon="@drawable/icon"
        android:label="@string/app_name" >
        <activity
            android:name=".GMapsActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" >
                    <category android:name="android.intent.category.LAUNCHER" >
                    </category>
                </action>
            </intent-filter>
        </activity>
        <activity
            android:name=".GmapsActivity1"
            android:label="@string/app_name" >
            <intent-filter>
                <category android:name="android.intent.category.LAUNCHER" >
                </category>
            </intent-filter>
        </activity>
    </application>

then your GMapsActivity.java should like this

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

        //..some code here..
     }

@Override  
 public void onClick(View v) {  
  Intent i = new Intent(GMapsActivity.this, GmapsActivity1.class);  
  startActivity(i);  
 }

and finally your GmapsActivity1.java should be like this

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

        //..some code here..
     }

also you may like to check below simple tutorial to understand this

Start/Load Activity from Activity in Android

still have any doubt, let me know!!