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PO
 

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  1. PO
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    <p>I think there should be some problem with setting preview parameters. Try below.</p> <pre><code>public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { if (isPreviewRunning) { camera.stopPreview(); } try{ Camera.Parameters p = camera.getParameters(); if(p!=null){ List&lt;Size&gt; sizes = p.getSupportedPreviewSizes(); Size optimalSize = getOptimalPreviewSize(sizes, w, h); p.setPreviewSize(optimalSize.width, optimalSize.height); camera.setParameters(p); camera.setPreviewDisplay(holder);; camera.startPreview(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } isPreviewRunning = true; } private Size getOptimalPreviewSize(List&lt;Size&gt; sizes, int w, int h) { // TODO Auto-generated method stub final double ASPECT_TOLERANCE = 0.05; double targetRatio = (double) w / h; if (sizes == null) return null; Size optimalSize = null; double minDiff = Double.MAX_VALUE; int targetHeight = h; // Try to find an size match aspect ratio and size for (Size size : sizes) { double ratio = (double) size.width / size.height; if (Math.abs(ratio - targetRatio) &gt; ASPECT_TOLERANCE) continue; if (Math.abs(size.height - targetHeight) &lt; minDiff) { optimalSize = size; minDiff = Math.abs(size.height - targetHeight); } } // Cannot find the one match the aspect ratio, ignore the requirement if (optimalSize == null) { minDiff = Double.MAX_VALUE; for (Size size : sizes) { if (Math.abs(size.height - targetHeight) &lt; minDiff) { optimalSize = size; minDiff = Math.abs(size.height - targetHeight); } } } return optimalSize; } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { if (isPreviewRunning) { camera.stopPreview(); } try{ Camera.Parameters p = camera.getParameters(); if(p!=null){ List&lt;Size&gt; sizes = p.getSupportedPreviewSizes(); Size optimalSize = getOptimalPreviewSize(sizes, w, h); p.setPreviewSize(optimalSize.width, optimalSize.height); camera.setParameters(p); camera.setPreviewDisplay(holder);; camera.startPreview(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } isPreviewRunning = true; } private Size getOptimalPreviewSize(List sizes, int w, int h) { // TODO Auto-generated method stub final double ASPECT_TOLERANCE = 0.05; double targetRatio = (double) w / h; if (sizes == null) return null; Size optimalSize = null; double minDiff = Double.MAX_VALUE; int targetHeight = h; // Try to find an size match aspect ratio and size for (Size size : sizes) { double ratio = (double) size.width / size.height; if (Math.abs(ratio - targetRatio) &gt; ASPECT_TOLERANCE) continue; if (Math.abs(size.height - targetHeight) &lt; minDiff) { optimalSize = size; minDiff = Math.abs(size.height - targetHeight); } } // Cannot find the one match the aspect ratio, ignore the requirement if (optimalSize == null) { minDiff = Double.MAX_VALUE; for (Size size : sizes) { if (Math.abs(size.height - targetHeight) &lt; minDiff) { optimalSize = size; minDiff = Math.abs(size.height - targetHeight); } } } return optimalSize; } </code></pre> <p>Put this code in your surfaceChanged(). getOptimalPreviewSize() is used to set preview parameters according to device resolution.</p>
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    1. POApplication crashes on the Galaxy tablet
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    1. USÁlvaro
    1. USDhruvisha
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    1. VO
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      1. VTUpMod
    2. VO
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    3. VO
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      1. VTApproveEditSuggestion
    1. COseems like a lot of code just to get the devices native camera..but thanks
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      1. PO
      1. USerik
    2. COif so then u need to set permission of using camera in androidmanifest.xml
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      1. USDhruvisha
    3. COmy permission is set in my manifest.. that should go without saying.. i believe it would crash on any device if i hadn't correct?
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      1. USerik
 

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