java.lang.IllegalArgumentException:建议的分辨率图缺少相机1的分辨率

Question

使用CameraX.LensFacing.FRONT在模拟器上进行测试时会发生此错误。

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: meter.meter, PID: 15289
    java.lang.RuntimeException: Unable to start activity ComponentInfo{meter.meter/meter.meter.CameraActivity}: java.lang.IllegalArgumentException: Suggested resolution map missing resolution for camera 1
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
     Caused by: java.lang.IllegalArgumentException: Suggested resolution map missing resolution for camera 1
        at androidx.camera.core.Preview.onSuggestedResolutionUpdated(Preview.java:310)
        at androidx.camera.core.UseCase.updateSuggestedResolution(UseCase.java:375)
        at androidx.camera.core.CameraX.calculateSuggestedResolutions(CameraX.java:458)
        at androidx.camera.core.CameraX.bindToLifecycle(CameraX.java:144)
        at meter.meter.CameraActivity.onCreate(CameraActivity.java:68)
        at android.app.Activity.performCreate(Activity.java:7136)
        at android.app.Activity.performCreate(Activity.java:7127)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)

代码：

PreviewConfig config = new PreviewConfig.Builder().setLensFacing(CameraX.LensFacing.FRONT).build();

    Preview preview = new Preview(config);

    TextureView textureView = findViewById(R.id.textureView);


    preview.setOnPreviewOutputUpdateListener(new Preview.OnPreviewOutputUpdateListener() {

                     @Override
                     public void onUpdated(Preview.PreviewOutput output) {
                            textureView.setSurfaceTexture(output.getSurfaceTexture());
                        }
                    });

                    ImageCaptureConfig imageCaptureConfig = new ImageCaptureConfig.Builder().build();

                    imageCapture = new ImageCapture(imageCaptureConfig);
                    CameraX.bindToLifecycle((LifecycleOwner) this,imageCapture, preview);

Answer 1

将setLensFacing(CameraX.LensFacing.FRONT)添加到ImageCaptureConfig可以解决您的问题

Answer 2

作为nestos答案的一个补充，我必须将setLensFacing(CameraX.LensFacing.FRONT)添加到ImageCaptureConfig和PreviewConfig中才能完成这项工作。

Answer 3

您应该为传递给setLensFacing(..)的每个UseCase控件调用CameraX.bindToLifecycle((LifecycleOwner) this, imageCapture, preview)