Android views change on click

Question

I need something simple, an ability to switch views in my app like I do in iPhone, for example I load first screen with button, click on this button and go next screen with an ability to go back ( We all see Back button in the iPhone UI ). I've been trying to do startActivity(this,MySecondScreen.class) but it crashes.

public class mainClass extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}

public void login_Click(View v) {
    // Perform action on click
    try{
    Intent i = new Intent(this, MainMenuTabs.class);
    startActivity(i);
    }
    catch(Exception ex)
    {
        Log.e("main",ex.toString());
    }
}

}

and my second class is this which is a TabActivity extender public class pissedoff extends Activity {

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

public void login_Click(View v) {
    // Perform action on click
    try{
    Intent i = new Intent(this, MainMenuTabs.class);
    startActivity(i);
    }
    catch(Exception ex)
    {
        Log.e("main",ex.toString());
    }
}

}

Solution 1

Intent myIntent = new Intent(view.getContext(), YourNewClass.class); /** Class name here */
startActivityForResult(myIntent, 0);

It might crash because in your android manifest file also have to declare activity like that:

<activity android:name="YourNewClass" android:label="YourNewClass"></activity>

Or use the built in grahpical thing. (Android manifest -> Application -> Application Nodes -> Add -> Activity)

Solution 2

In Your XML, create a file for each view (makes it easier to work with), then in your main:

<ViewFlipper
xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:id="@+id/vf">

    <include android:id="@+id/firstView" layout="@layout/first" />
    <include android:id="@+id/secondView" layout="@layout/second" />
    <include android:id="@+id/thirdView" layout="@layout/third" />
    <include android:id="@+id/fourthView" layout="@layout/fourth" />

</ViewFlipper>

in your java code:

ViewFlipper vf;
public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        vf = (ViewFlipper) findViewById(R.id.vf);

when you want to use the next view use vf.showNext();