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POHow to display a custom loading bar in a dialog box in android
 

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  1. POHow to display a custom loading bar in a dialog box in android
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    <p>I have an app that lets the user select a <em>radio-button</em> from a <em>list</em>. When the <em>radio-button</em> is selected, a custom dialog appears looking like this: <img src="https://i.stack.imgur.com/zX8j6.png" alt="enter image description here"></p> <p>I want to display a animation that shows a hamster running while the actual image is downloaded using an aynctask class. After the requested image is finished downloading, it should be displayed on the screen(replacing the hamster animation).</p> <p>So, my question is: how can can I achieve this? I tried using the gif frame loader, but that doesn't work in the dialog, however, I can display a rotating image, but I want the loading bar to be a little more fun, so I chose the running hamster. The above methods are from <a href="http://yekmer.posterous.com/how-to-make-a-loading-animator-in-android" rel="nofollow noreferrer">here</a></p> <p>Also, the user should be able to click the close button, even though the image hasn't loaded(in case the image url is broken).</p> <p><strong>Edit:</strong> This is the example that doesn't work:</p> <pre><code>import android.app.Activity; import android.graphics.drawable.AnimationDrawable; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; public class MainActiviy extends Activity implements OnClickListener{ Button start, stop; ImageView imageView; AnimationDrawable frameAnimation; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); imageView = (ImageView)findViewById(R.id.blankImageView); start = (Button)findViewById(R.id.start); stop = (Button)findViewById(R.id.stop); imageView.setBackgroundResource(R.drawable.spin_animation); frameAnimation = (AnimationDrawable) imageView.getBackground(); start.setOnClickListener(this); stop.setOnClickListener(this); //does not start the animation frameAnimation.start(); } public void onClick(View v) { switch(v.getId()) { case R.id.start: frameAnimation.start(); break; case R.id.stop: frameAnimation.stop(); break; } } } </code></pre> <p>//the main.xml layout</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;ImageView android:layout_width="wrap_content" android:id="@+id/blankImageView" android:layout_height="wrap_content"/&gt; &lt;Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/start" android:text="start"/&gt; &lt;Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/stop" android:text="stop"/&gt; &lt;/LinearLayout&gt; </code></pre> <p>//the spin_animation.xml file in the res/drawable folder</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="false"&gt; &lt;item android:drawable="@drawable/frame1" android:duration="60" /&gt; &lt;item android:drawable="@drawable/frame2" android:duration="60" /&gt; &lt;item android:drawable="@drawable/frame3" android:duration="60" /&gt; &lt;item android:drawable="@drawable/frame4" android:duration="60" /&gt; &lt;/animation-list&gt; </code></pre> <p>//and the <a href="http://www.2shared.com/file/scyqZKSm/frames.html" rel="nofollow noreferrer">frames</a> </p> <p>How can I make the image animate without clicking the start button?</p>
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    1. USOvidiu Birgu
    1. USOvidiu Birgu
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    1. CODid you have a problem getting an animation-list to work? That seems like the best option.
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      1. POHow to display a custom loading bar in a dialog box in android
      1. USMikeIsrael
    2. COread the example above, and you'll understand what I mean
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      1. POHow to display a custom loading bar in a dialog box in android
      1. USOvidiu Birgu
    3. COI am not sure I totally understand the code it seems there are a start and stop button from the activity, is that activity your popup? If so I think this thread will help you out http://stackoverflow.com/questions/2785336/starting-frame-by-frame-animation if it is still causing issues by placing in the onStart, try the onWindowFocusChanged of the activity. If you could repost with a bit fuller amount of code including the calling activity, might shed some more light.
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      1. POHow to display a custom loading bar in a dialog box in android
      1. USMikeIsrael
 

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