我已經通過兩種方式處理了這個問題，一個是在XML中創建SurfaceView，然後將它的值賦給我的私有SurfaceView或使用公共構造函數。

使用該SurfaceView，我可以使用getHolder()獲取SurfaceHolder，然後使用getSurface()獲取Surface。

在我發佈的代碼中，我只是用公共構造函數創建它。

這裏是我的代碼，其快速的類實現我昨天與其他項目嘗一嘗後嘗試。檢查MainActivity的onCreate()和onOpened()，使用SurfaceView。

package com.example.universitywork.canyouwork;

/* IMPORTS */

public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {

// CREAMOS CLASES

private CameraManager mManager;

private CameraDevice cDevice;

private CaptureRequest cRequest;

private Handler handle = new Handler();

private SurfaceView surface;

private SurfaceHolder holder;

private Surface under;

private final CameraDevice.StateCallback mCallbackDevice = new CameraDevice.StateCallback() {

@Override

public void onOpened(CameraDevice camera) {

cDevice = camera;

try {

camera.createCaptureSession(Arrays.asList(under), mCallbackSession, handle);

} catch (CameraAccessException e) {

e.printStackTrace();

}

}

@Override

public void onDisconnected(CameraDevice camera) {

System.out.println("ONDC");

}

@Override

public void onError(CameraDevice camera, int error) {

System.out.println("ONerror");

}

};

private final CameraCaptureSession.CaptureCallback mCaptureCallback = new CameraCaptureSession.CaptureCallback() {

};

private final CameraCaptureSession.StateCallback mCallbackSession = new CameraCaptureSession.StateCallback() {

@Override

public void onConfigured(CameraCaptureSession session) {

try {

System.out.println("LLEGO AQUI");

cRequest = cDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW).build();

// session.capture(cRequest, mCaptureCallback, handle);

} catch (CameraAccessException e) {

e.printStackTrace();

}

}

@Override

public void onConfigureFailed(CameraCaptureSession session) {

System.out.println("ONCONFIGUREFAILED");

}

};

public MainActivity() {

}

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

surface= new SurfaceView(this);

holder = surface.getHolder();

holder.addCallback(this);

holder.setFixedSize(500,500);

under= holder.getSurface();

mManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);

String id = getId(mManager);

try {

if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {

// TODO: Consider calling

// ActivityCompat#requestPermissions

// here to request the missing permissions, and then overriding

// public void onRequestPermissionsResult(int requestCode, String[] permissions,

// int[] grantResults)

// to handle the case where the user grants the permission. See the documentation

// for ActivityCompat#requestPermissions for more details.

return;

}

mManager.openCamera(id, mCallbackDevice, handle);

} catch (CameraAccessException e) {

e.printStackTrace();

}

}

@Override

public void surfaceCreated(SurfaceHolder holder) {

}

@Override

public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

System.out.println("ONCHANGED");

}

@Override

public void surfaceDestroyed(SurfaceHolder holder) {

System.out.println("ONDESTROYED");

}

public String getId (CameraManager manager) {

try {

for (String cameraId : manager.getCameraIdList()) {

CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);

int orientation = characteristics.get(CameraCharacteristics.LENS_FACING);

if (orientation == CameraCharacteristics.LENS_FACING_FRONT) return cameraId;

}

} catch (CameraAccessException e) {

e.printStackTrace();

}

return "NULL";

}}

快進到錯誤：

E/Legacy-CameraDevice-JNI: getNativeWindow: Surface had no valid native window.

E/Legacy-CameraDevice-JNI: LegacyCameraDevice_nativeDetectSurfaceDimens: Could not retrieve native window from surface.

D/AndroidRuntime: Shutting down VM

E/AndroidRuntime: FATAL EXCEPTION: main

Process: com.example.universitywork.canyouwork, PID: 4885

java.lang.IllegalArgumentException: Surface was abandoned

at android.hardware.camera2.utils.SurfaceUtils.getSurfaceSize(SurfaceUtils.java:70)

at android.hardware.camera2.params.OutputConfiguration.(OutputConfiguration.java:97)

at android.hardware.camera2.params.OutputConfiguration.(OutputConfiguration.java:71)

at android.hardware.camera2.impl.CameraDeviceImpl.createCaptureSession(CameraDeviceImpl.java:474)

at com.example.universitywork.canyouwork.MainActivity$1.onOpened(MainActivity.java:40)

at android.hardware.camera2.impl.CameraDeviceImpl$1.run(CameraDeviceImpl.java:134)

at android.os.Handler.handleCallback(Handler.java:739)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:148)

at android.app.ActivityThread.main(ActivityThread.java:5417)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Caused by: android.hardware.camera2.legacy.LegacyExceptionUtils$BufferQueueAbandonedException

at android.hardware.camera2.legacy.LegacyExceptionUtils.throwOnError(LegacyExceptionUtils.java:64)

at android.hardware.camera2.legacy.LegacyCameraDevice.getSurfaceSize(LegacyCameraDevice.java:540)

at android.hardware.camera2.utils.SurfaceUtils.getSurfaceSize(SurfaceUtils.java:68)

at android.hardware.camera2.params.OutputConfiguration.(OutputConfiguration.java:97)

at android.hardware.camera2.params.OutputConfiguration.(OutputConfiguration.java:71)

at android.hardware.camera2.impl.CameraDeviceImpl.createCaptureSession(CameraDeviceImpl.java:474)

at com.example.universitywork.canyouwork.MainActivity$1.onOpened(MainActivity.java:40)

at android.hardware.camera2.impl.CameraDeviceImpl$1.run(CameraDeviceImpl.java:134)

at android.os.Handler.handleCallback(Handler.java:739)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:148)

at android.app.ActivityThread.main(ActivityThread.java:5417)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

我認爲這與大小或SurfaceView的下墊面做。也許我沒有正確使用它，但Android文檔說它可以用SurfaceView製作。

2016-12-29

HeTheMan