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one more null check
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@@ -210,9 +210,10 @@ public class Preview extends ViewGroup implements SurfaceHolder.Callback, View.O
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private void setupPreview() {
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canTakePicture = true;
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if (camera != null) {
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if (camera != null && previewSize != null) {
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final Camera.Parameters parameters = camera.getParameters();
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parameters.setPreviewSize(previewSize.width, previewSize.height);
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requestLayout();
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camera.setParameters(parameters);
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