Question

I am comparatively new to Android.

Description –

I have a LinearLayout with TextView‘s in it.
I am adding the TextView dynamically.

When I touch the TextView, I want it to ScaleUp and when I touch the same TextView again I want it to ScaleDown.

My problems are –

1. When a TextView is scaled up and any other TextView is touched. The older TextView should scale down and the new touched TextView should scale up.
2. When I touch a scaled up TextView then this TextView should scale down.

This is what I have tried

I have 2 set xmls. 1 for scale up

<set xmlns:android="http://schemas.android.com/apk/res/android">
 <scale
    android:fromXScale="1.0"
    android:fromYScale="1.0"
    android:toXScale="3.0"
    android:toYScale="3.0" >
</scale>

and the other for scale down

<set xmlns:android="http://schemas.android.com/apk/res/android">
 <scale
    android:fromXScale="3.0"
    android:fromYScale="3.0"
    android:toXScale="1.0"
    android:toYScale="1.0" >
</scale>

My Activity class –

myTextView.setOnTouchListener(new OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {

                if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    if (myTextView.getAnimation() == null) {
                        Animation a = AnimationUtils.loadAnimation(
                                getBaseContext(), R.anim.scale_up);
                        a.setFillAfter(true);
                        v.startAnimation(a);
                    } else {
                        v.setOnTouchListener(new OnTouchListener() {
                            @Override
                            public boolean onTouch(View v1,
                                    MotionEvent event) {
                                if (event.getAction() == MotionEvent.ACTION_DOWN) {
                                    Animation a1 = AnimationUtils
                                            .loadAnimation(
                                                    getBaseContext(),
                                                    R.anim.scale_down);
                                    a1.setFillAfter(true);
                                    v1.startAnimation(a1);

                                }
                                return true;
                            }
                        });
                    }
                }
                return false;
            }

        });

Answer 1

make an collection of textviews and store states in them.. on every touch you loop this collection and search for the right textview and do appropriate things with it. You can also search trough this collection and check which textviews are scaled up or down since you are managing the states yourself.