android imageview onClick animation

Question

hi. I guess this is kind of an odd question but i have tried setting onClicklistener on an ImageView and it has worked. But the problem is that the user cannot sense the click. I mean if some of u have worked on other mobile environs(like apple iphone) then wen we click on a Image in other environs then it gives an effect on the image so that the user can understand that the image has been clicked.

I have tried setting alpha using "setalpha" method but it doesnt work. Though the same thing is working fine on onFocusListener implementation. Can some1 suggest a different way to modify the image on click...

I am new to android so havent learnt the nuances of simple animation also... if there is any simple animation i can use for the same then plzz plzzz let me know...

Thanx...

Answer 1

Not sure if it works, but have you tried setSelected() http://developer.android.com/reference/android/widget/ImageView.html#setSelected(boolean)

Answer 2

You'll want to use a drawable that contains different images for the different states you want to support. Here's an example:

<?xml version="1.0" encoding="utf-8"?>    
<selector xmlns:android="http://schemas.android.com/apk/res/android"&gt;
    <item android:state_pressed="true" android:drawable="@drawable/img_pressed" />
    <item android:state_focused="true" android:drawable="@drawable/img_focused" />
    <item android:drawable="@drawable/img_at_rest" />
</selector>

Name this file img.xml or something and put it in your drawable directory, then set your ImageView's image to img.xml. @drawable/img_at_rest is the original image you're trying to use, while @drawable/img_pressed and @drawable/img_focused are the images to use for their respective states. You can also use solid colors instead of images if it's appropriate for your use case.

Answer 3

   <?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"&gt;

<alpha
android:fromAlpha = "1.0"
android:toAlpha = "0.5"
android:duration = "300">
</alpha>
<scale
android:fromXScale = "1"
android:toXScale = "0.9" 
android:fromYScale = "1"
android:toYScale = "0.9" 
android:pivotX="50%"
android:pivotY="50%" 
android:duration = "50">
</scale>
</set>

hi friends don know if this the correct method but defining an animation as mentioned above did the trick... now we just have to give

public void onClick(View v) {
v.startAnimation(AnimationUtils.loadAnimation(Context, R.anim.image_click));
//Your other coding if present
}

in the OnClick method and the change will be visible...

Just try this... thanx all of u 4 ur help....