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POhow to flip all items in a gridview at a specific number of itemclicks
 

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  1. POhow to flip all items in a gridview at a specific number of itemclicks
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    <p>i am trying to do a kind of flipcard app in which there is gridview of images showing a same image ,say a card_back .</p> <p>On clicking each image,it flips showing another image which is different for every item of gridview,say a card_front.</p> <p>what i am trying to do is that ,if two card_front are shown,on clicking the next item,the first two cards should be flipped to show their card_back image.ie,at a time a maximum of only two cards can show their card_front image.But i dont know how to do that.</p> <p>Can anyone please help me out.Thanks in advance.</p> <p>This is the code for flipping images in gridview. </p> <pre><code> public class FullscreenActivity extends Activity implements OnItemClickListener, AnimationListener { ImageView imageView ; int pos; Animation animation1; Animation animation2; int[] clicked = {0,0,0,0,0,0,0,0,0,0,0,0}; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fullscreen); animation1 = AnimationUtils.loadAnimation(this, R.anim.to_middle); animation1.setAnimationListener(this); animation2 = AnimationUtils.loadAnimation(this, R.anim.from_middle); animation2.setAnimationListener(this); GridView gridview = (GridView) findViewById(R.id.gridview); gridview.setAdapter(new ImageAdapter(this)); gridview.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View v, int position, long id) { pos=position; imageView = ((ViewHolder) v.getTag()).img; (imageView).clearAnimation(); (imageView).setAnimation(animation1); (imageView).startAnimation(animation1); } }); } @Override public void onItemClick(AdapterView&lt;?&gt; arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub } @Override public void onAnimationEnd(Animation arg0) { if (arg0==animation1) { if(clicked[pos]==0) { imageView.setImageResource(ImageAdapter.mThumbSelected[pos]); clicked[pos]=1; } else if(clicked[pos]==1) { clicked[pos]=0; imageView.setImageResource(R.drawable.card_back); } imageView.clearAnimation(); imageView.setAnimation(animation2); imageView.startAnimation(animation2); } } @Override public void onAnimationRepeat(Animation animation) { // TODO Auto-generated method stub } @Override public void onAnimationStart(Animation animation) { // TODO Auto-generated method stub } } </code></pre>
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    1. USjincy abraham
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    1. COWhat problem do you have particularly? Do you have problem keeping track of how many cards are flipped? Do you have problem flipping a card itself? Or you know how to flip a card but have no idea how to flip more than 1 at the same time?
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    2. COi dont know to keep track of how many cards are flipped at the moment.and i dont know to flip every card_front to card_back when the no_of_clicks=2.
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      1. POhow to flip all items in a gridview at a specific number of itemclicks
      1. USjincy abraham
    3. COAs someone else answer bellow, just use a counter and two more variables to keep track of it. Hope that solve your problem
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      1. POhow to flip all items in a gridview at a specific number of itemclicks
      1. UStrungdinhtrong
 

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