华为摄像头采集自动聚焦崩溃

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Requested focus mode "continuous-video" is not available: fixed focus len

参考

https://stackoverflow.com/questions/7754263/android-record-video-with-continuous-auto-focus

boolean startContinuousAutoFocus() {

    Camera.Parameters params = mCamera.getParameters();

    List<String> focusModes = params.getSupportedFocusModes();

    String CAF_PICTURE = Parameters.FOCUS_MODE_CONTINUOUS_PICTURE, 
           CAF_VIDEO = Parameters.FOCUS_MODE_CONTINUOUS_VIDEO, 
           supportedMode = focusModes
                   .contains(CAF_PICTURE) ? CAF_PICTURE : focusModes
                   .contains(CAF_VIDEO) ? CAF_VIDEO : "";

    if (!supportedMode.equals("")) {

        params.setFocusMode(supportedMode);
        mCamera.setParameters(params);
        return true;
    }

    return false;
}