我已经在我的应用程序中实现了 camera2，它正在 Nexus 6P 和 Nexus 5 上运行。现在我正在尝试在其他设备上对其进行测试，而我尝试的第一个设备立即失败了。这是我在运行 Lollipop 的 HTC M7 上遇到的错误：
Surface with size (w=1920, h=1080) and format 0x1 is not valid,
size not in valid set: [1920x1088, 1440x1088, 1456x832, 1088x1088,
1280x720, 960x720, 960x544, 720x720, 800x480, 768x464, 720x480,
768x432, 640x480, 544x544, 576x432, 640x384, 640x368, 480x480,
480x320, 384x288, 352x288, 320x240, 240x160, 176x144]
有什么建议在这种情况下我应该怎么做？我已经尝试计算最接近我的分辨率TextureView（即 1280x720）并TextureView相应地调整大小，但这看起来并不特别好 - 未使用的空间太多......在使用旧相机的设备上没有看到这个问题和SurfaceView
编辑：
问题似乎在我的TextureView. 这是我的代码：
在控制器内部我有：
TextureView.SurfaceTextureListener mSurfaceTextureListener = new TextureView.SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture,
int width, int height) {
startLollipopPreview(width, height);
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture,
int width, int height) {
configureTransform(width,height);
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
return true;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
}
};
private void startLollipopPreview(int width, int height) {
CameraProxy camera = getCurrentCamera();
try {
if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
mPreviewSize = camera
.getOptimalPreviewSize((Activity) mContext,
camera.getSupportedPreviewSizes(
width, height), (double) width / height);
mPreviewTexture.setAspectRatio(mPreviewSize.width, mPreviewSize.height);
mPreviewTexture.getSurfaceTexture().setDefaultBufferSize(mPreviewSize.width,
mPreviewSize.height);
configureTransform(mPreviewSize.width, mPreviewSize.height);
camera.setStateAndHandler(getCameraStateCallback(), mBackgroundHandler);
camera.open();
} catch (CameraHardwareException e) {
Log.e(TAG, ".surfaceCreated() - Error opening camera", e);
((Activity) mContext).finish();
} catch (InterruptedException e) {
Log.e(TAG, ".surfaceCreated() - InterruptedException opening camera", e);
}
}
configureTransform()看起来与 Camera2 google 示例完全一样，所以我认为问题不存在。
在我的里面我TextureView有以下内容：
public void setAspectRatio(int width, int height) {
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Size cannot be negative.");
}
mRatioWidth = width;
mRatioHeight = height;
requestLayout();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
if (0 == mRatioWidth || 0 == mRatioHeight) {
setMeasuredDimension(width, height);
} else {
if (width < height * mRatioWidth / mRatioHeight) {
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
params.gravity = Gravity.CENTER_VERTICAL;
setLayoutParams(params);
setMeasuredDimension(width, width * mRatioHeight / mRatioWidth);
} else {
setMeasuredDimension(height * mRatioWidth / mRatioHeight, height);
}
}
}