ANDROID CAMERA:getParameters失败(空参数) [英] ANDROID CAMERA: getParameters failed (empty parameters)

问题描述

您好，我仅在棒棒糖以下的OS版本中遇到此问题，为此进行了很多搜索，未找到正确的解决方案.我认为问题出在操作系统版本上 5+可以正常工作 我的代码是

Hi I am getting this issue only in OS versions below lollipop, searched a lot for this bit didn't found the right solution. I think the issue is with OS version Its working fine in 5+ my piece of code is

 private void setCameraPhotoQuality(Camera camera) {
        final Camera.Parameters parameters = camera.getParameters();

        parameters.setPictureFormat(PixelFormat.JPEG);

        if (configurationProvider.getMediaQuality() == Configuration.MEDIA_QUALITY_LOW) {
            parameters.setJpegQuality(50);
        } else if (configurationProvider.getMediaQuality() == Configuration.MEDIA_QUALITY_MEDIUM) {
            parameters.setJpegQuality(75);
        } else if (configurationProvider.getMediaQuality() == Configuration.MEDIA_QUALITY_HIGH) {
            parameters.setJpegQuality(100);
        } else if (configurationProvider.getMediaQuality() == Configuration.MEDIA_QUALITY_HIGHEST) {
            parameters.setJpegQuality(100);
        }
        parameters.setPictureSize(photoSize.getWidth(), photoSize.getHeight());

        camera.setParameters(parameters);
    }

 java.lang.RuntimeException: getParameters failed (empty parameters)
    at android.hardware.Camera.native_getParameters(Native Method)
    at android.hardware.Camera.getParameters(Camera.java:1662)

推荐答案

问题与仿真程序有关，除了屏幕冻结问题之外，其他问题还可以通过添加

Issue is with emulator, Other than that screen freezing issue is solved by adding

camera.stopPreview();

camera.startPreview();

在surfaceChanged方法中.

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