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POInconsistent results using XML layout and SurfaceView
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9153815
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2012-02-05T22:46:29.510
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2012-02-07T17:42:00.227
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2012-02-07T17:42:00.227
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I'm using an XML layout to show a custom class which extends SurfaceView along with a single button to the right of it, using the XML code below: main.xml <pre><code><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="horizontal"> <com.my.name.MySurfaceView android:id="@+id/camera_view" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <Button android:id="@+id/button" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/button_text"/> </LinearLayout> </code></pre> I'm then using the following code to set the layout for my activity: MyActivity.java <pre><code>public class MyActivity extends Activity { private MySurfaceView mySurfaceView; private Button button; public MyActivity() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mySurfaceView = (MySurfaceView) findViewById(R.id.camera_view); button = (Button) findViewById(R.id.button); button.setOnClickListener(new android.view.View.OnClickListener() { public void onClick(View v) { mySurfaceView.setClick(true); } }); } } </code></pre> The <code>MySurfaceView</code> class then extends <code>SurfaceView</code> and is setup to show the camera stream. The problem is, when starting the app, there are often different outcomes. Either: Both the <code>Button</code> and <code>MySurfaceView</code> are drawn to the screen at the same time, then the camera stream starts displaying (This is how I'd like it to work every time) or <code>MySurfaceView</code> loads and shows the camera stream for a few seconds, before the <code>Button</code> is eventually displayed. I understand that the <code>SurfaceView</code> has to be created and measured etc before the button can be displayed so I should expect a slight delay, but as mentioned above, in some cases the <code>SurfaceView</code> displays the camera stream for up to 5 seconds before the button is eventually drawn to the screen. How I can avoid this? Thanks for your help in advance. EDIT: It seems as though the <code>SurfaceView</code> is not completely finished being created, despite being shown on the screen. I'm using OpenCV to process the camera stream and this seems to still be initialising things after the <code>SurfaceView</code> is initially drawn, and so the <code>Button</code> is not drawn until all of this is finished.
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<java><android><layout><camera><surfaceview>
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Inconsistent results using XML layout and SurfaceView
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1. USwoodstock365
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