Question

I’ve created a somewhat simple layout with a total of 4 buttons: 3 buttons at the bottom of the layout are side by side (in a RelativeLayout) and on huge button almost in the middle of the screen.

On Ice Cream Sandwich and Jellybean, I can click any of the buttons and everything works fine (i.e.The respective onClick functions are called) but weirdly enough on Gingerbread any of the 3 buttons at the bottom work but not the one in the middle. onClick fires off many instructions, none of which are being executed so as far as I can tell, it’s not being called and I don’t know why.

Code for layout is given below. Any help is greatly appreciated!

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/main_off"
android:orientation="vertical"
android:weightSum="10" >

    <ImageButton
        android:id="@+id/button_activate"
        android:layout_width="155dp"
        android:layout_height="0dp"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="170dp"
        android:layout_weight="7.2"
        android:background="@drawable/transparent"
        android:clickable="true"
        android:contentDescription="@string/app_name"
        android:onClick="activate"
        android:src="@drawable/transparent" />

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="30dp"
        android:layout_marginTop="80dp"
        android:layout_weight="2" >

        <ImageButton
            android:id="@+id/button_help"
            android:layout_width="90dp"
            android:layout_height="fill_parent"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="0dp"
            android:background="@drawable/transparent"
            android:clickable="true"
            android:contentDescription="@string/app_name"
            android:onClick="openhelp"
            android:src="@drawable/transparent" />


        <ImageButton
            android:id="@+id/button_settings"
            android:layout_width="55dp"
            android:layout_height="fill_parent"
            android:layout_alignParentLeft="true"
            android:layout_marginTop="0dp"
            android:layout_toLeftOf="@+id/button_help"
            android:background="@drawable/transparent"
            android:clickable="true"
            android:contentDescription="@string/app_name"
            android:onClick="opensettings"
            android:src="@drawable/transparent" />


        <ImageButton
            android:id="@+id/button_contact"
            android:layout_width="70dp"
            android:layout_height="fill_parent"
            android:layout_alignParentRight="true"
            android:layout_marginTop="0dp"
            android:layout_toRightOf="@+id/button_help"
            android:background="@drawable/transparent"
            android:clickable="true"
            android:contentDescription="@string/app_name"
            android:onClick="opencontact"
            android:src="@drawable/transparent" />

    </RelativeLayout>

</LinearLayout>

Activity that calls the layout (main.xml):

//bunch of imports

public class MainActivity extends Activity {

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

    LinearLayout layout = (LinearLayout) findViewById (R.id.main_layout);

    boolean serviceOn = isMyServiceRunning();

    if(serviceOn==true) layout.setBackgroundResource(R.drawable.main_on);
    else if (serviceOn==false) layout.setBackgroundResource(R.drawable.main_off); 
}

@Override
protected void onResume() {
    super.onResume();
    LinearLayout layout = (LinearLayout) findViewById (R.id.main_layout);

    boolean serviceIsOn = isMyServiceRunning();

    if(serviceIsOn==true) layout.setBackgroundResource(R.drawable.main_on);
    else if (serviceIsOn==false) layout.setBackgroundResource(R.drawable.main_off);
}



public void activate(View v){
    LinearLayout layout = (LinearLayout) findViewById (R.id.main_layout);
    Resources res = getResources();

    Drawable on = res.getDrawable(R.drawable.main_on);
    Drawable off = res.getDrawable(R.drawable.main_off);

    if (layout.getBackground().getConstantState() == off.getConstantState()){
        layout.setBackgroundResource(R.drawable.main_on);
        Toast.makeText(getApplicationContext(), "App has been activated", Toast.LENGTH_SHORT).show();
        turnon();
    }
    else if (layout.getBackground().getConstantState() == on.getConstantState()){
        layout.setBackgroundResource(R.drawable.main_off);
        Toast.makeText(getApplicationContext(), "App has been deactivated", Toast.LENGTH_SHORT).show();
        turnoff();
    }
}

}

Answer 1

I can run this fine on my emulator for both 2.2 and 2.3.

The only thing I can suggest is to try to remove drawables (maybe some settings there are screwing things up), or try to make your relative layout height 0dp, since you are using weight_sum