你如何使用 Textureview 作为 cameraX 的预览 [Java]

Question

I followed the guides on cameraX which all use PreviewView for displaying the camera output using preview.setSurfaceProvider(PreviewView.createSurfaceProvider());

How do I set the preview to use a textureview instead of a PreviewView

Answer 1

You can specify which view to use in PreviewView between SurfaceView and TextureView. Before setting surfaceProvider, set the implementation mode

previewView.implementationMode = PreviewView.ImplementationMode.COMPATIBLE

Here previewView is the XML id of PreviewView. PreviewView.ImplementationMode.COMPATIBLE is for TextureView. After setting this, the PreviewView will use TextureView to show Camera.

The implementation mode for SurfaceView is PreviewView.ImplementationMode.COMPATIBLE

This is compatible with

androidx.camera:camera-view:1.0.0-alpha22

For this version, you need to change

preview.setSurfaceProvider(PreviewView.createSurfaceProvider());

to preview.setSurfaceProvider(previewView.getSurfaceProvider)

Answer 2

my device previewView.setImplementationMode not show, what reason i can't understand. implementation 'androidx.camera:camera-view:1.1.0-alpha22' also using but why not work?