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POImagebutton from drawable in layer-list?
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  1. POImagebutton from drawable in layer-list?
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    copied!<p>I've looked for hours for the answer to this seemingly simple issue I'm having.</p> <p>Basically, how do you make a certain drawable in a layer-list an imagebutton? </p> <p>Eclipse doesn't mark this code with any errors yet when it runs I get a force close. What am I missing? </p> <p>Also --</p> <p>Do I use <code>findViewById</code> to reference resources even when they're in a layer-list?</p> <p>Does the <code>android:id</code> in the XML file belong with the <code>item</code> tag or the <code>bitmap</code> tag?</p> <p>EDIT: This code is just something I put together quickly to demonstrate my issue. I'm trying to make just the last layered drawable the active button. For example for a UI I am laying a bunch or graphics on top of one another, the last two layers will be buttons that I want to make active. Is that possible? Or maybe there's a better way to do what I'm trying to do?</p> <p>Thanks.</p> <hr> <p>layers.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;item&gt; &lt;bitmap android:src="@drawable/android_red" android:gravity="center" /&gt; &lt;/item&gt; &lt;item android:top="10dp" android:left="10dp"&gt; &lt;bitmap android:src="@drawable/android_green" android:gravity="center" /&gt; &lt;/item&gt; &lt;item android:id="@+id/blue_button" android:top="20dp" android:left="20dp"&gt; &lt;bitmap android:src="@drawable/android_blue" android:gravity="center" /&gt; &lt;/item&gt; &lt;/layer-list&gt; </code></pre> <hr> <p>main.xml:</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" android:orientation="vertical" &gt; &lt;ImageView android:layout_height="wrap_content" android:layout_width="wrap_content" android:src="@drawable/layers" /&gt; &lt;/LinearLayout&gt; </code></pre> <hr> <p>Activity:</p> <pre><code>public class LayoutTestActivity extends Activity implements OnClickListener { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FILL_PARENT,WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.main); ImageButton imgStartButton = (ImageButton) findViewById(R.id.blue_button); imgStartButton.setOnClickListener(this); } public void onClick(View v) { } } </code></pre>
 

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