choose Camera Preview Size - Android android.hardware

Android examples for android.hardware:Camera Preview

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Description

choose Camera Preview Size

Demo Code

import android.hardware.Camera;
import android.util.Log;
import java.util.List;

public class Main{

    private static final String TAG = "CameraUtils";
    /**/*w  ww . j  a va2 s .  co  m*/
     * Attempts to find a preview size that matches the provided width and height (which
     * specify the dimensions of the encoded video).  If it fails to find a match it just
     * uses the default preview size for video.
     * <p/>
     * TODO: should do a best-fit match, e.g.
     * https://github.com/commonsguy/cwac-camera/blob/master/camera/src/com/commonsware/cwac/camera/CameraUtils.java
     */
    public static void choosePreviewSize(Camera.Parameters parms,
            int width, int height) {
        // We should make sure that the requested MPEG size is less than the preferred
        // size, and has the same aspect ratio.
        Camera.Size ppsfv = parms.getPreferredPreviewSizeForVideo();
        if (ppsfv != null) {
            Log.d(TAG, "Camera preferred preview size for video is "
                    + ppsfv.width + "x" + ppsfv.height);
        }

        for (Camera.Size size : parms.getSupportedPreviewSizes()) {
            Log.d(TAG, "supported: " + size.width + "x" + size.height);
        }

        for (Camera.Size size : parms.getSupportedPreviewSizes()) {
            if (size.width == width && size.height == height) {
                Log.d(TAG, "setting preview size: " + width + "x" + height);
                parms.setPreviewSize(width, height);
                return;
            }
        }

        Log.w(TAG, "Unable to set preview size to " + width + "x" + height);
        if (ppsfv != null) {
            parms.setPreviewSize(ppsfv.width, ppsfv.height);
        }
        // else use whatever the default size is
    }

}

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