有人可以帮我解决以下代码吗?我想从Google样本(https://github.com/googlesamples/android-HdrViewfinder)改造HdrViewFinder
项目,使其也可以在人像模式下工作。但是该项目只能在横向模式下工作。
在人像模式下,相机预览会失真。
因此,这是我从HdrViewfinderActivity.java类提取的方法,我认为该方法负责将整个视图设置为横向:
/**
* Configure the surfaceview and RS processing.
*/
private void configureSurfaces() {
// Find a good size for output - largest 16:9 aspect ratio that's less than 720p
final int MAX_WIDTH = 1280;
final float TARGET_ASPECT = 16.f / 9.f;
final float ASPECT_TOLERANCE = 0.1f;
StreamConfigurationMap configs =
mCameraInfo.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
if (configs == null) {
throw new RuntimeException("Cannot get available picture/preview sizes.");
}
Size[] outputSizes = configs.getOutputSizes(SurfaceHolder.class);
Size outputSize = outputSizes[0];
float outputAspect = (float) outputSize.getWidth() / outputSize.getHeight();
for (Size candidateSize : outputSizes) {
if (candidateSize.getWidth() > MAX_WIDTH) continue;
float candidateAspect = (float) candidateSize.getWidth() / candidateSize.getHeight();
boolean goodCandidateAspect =
Math.abs(candidateAspect - TARGET_ASPECT) < ASPECT_TOLERANCE;
boolean goodOutputAspect =
Math.abs(outputAspect - TARGET_ASPECT) < ASPECT_TOLERANCE;
if ((goodCandidateAspect && !goodOutputAspect) ||
candidateSize.getWidth() > outputSize.getWidth()) {
outputSize = candidateSize;
outputAspect = candidateAspect;
}
}
Log.i(TAG, "Resolution chosen: " + outputSize);
// Configure processing
mProcessor = new ViewfinderProcessor(mRS, outputSize);
setupProcessor();
// Configure the output view - this will fire surfaceChanged
mPreviewView.setAspectRatio(outputAspect);
mPreviewView.getHolder().setFixedSize(outputSize.getWidth(), outputSize.getHeight());
}
如何更改此方法,使其也可以在纵向模式下使用?我需要更改什么?
仅将清单文件中的screenOrientation
属性设置为portrait
并没有帮助。
我发现16:9
用于全屏模式,而9:16
用于全屏模式。因此,我将MAX_WIDTH
更改为720
并将TARGET_ASPECT
更改为9.f/16.f
。但这也无济于事。
有人可以提供解决方案吗?
答案 0 :(得分:1)
我有一个experimental fork通过从SurfaceView切换到TextureView来实现。
已在具有 Android Pie
的Sony G8441 Xperia XZ1 Compact上进行了测试