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优化Camera初始化相关策略，减少出现卡顿的可能性（#64，#65）

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This commit is contained in:
jenly1314
2019-12-16 11:52:28 +08:00
parent c36ea8eb58
commit 2f4379cd7a
10 changed files with 87 additions and 71 deletions
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111
lib/src/main/java/com/king/zxing/CaptureHelper.java
View File

@@ -47,7 +47,7 @@ import androidx.fragment.app.Fragment;
/**
* @author <a href="mailto:jenly1314@gmail.com">Jenly</a>
*/
public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,CaptureManager {
public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,CaptureManager, SurfaceHolder.Callback {
public static final String TAG = CaptureHelper.class.getSimpleName();
@@ -65,7 +65,6 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
private ViewfinderView viewfinderView;
private SurfaceHolder surfaceHolder;
private SurfaceHolder.Callback callback;
private View ivTorch;
private Collection<BarcodeFormat> decodeFormats;
@@ -145,6 +144,8 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
*/
private OnCaptureCallback onCaptureCallback;
private boolean hasCameraFlash;
/**
* use {@link #CaptureHelper(Fragment, SurfaceView, ViewfinderView, View)}
* @param fragment
@@ -193,49 +194,8 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
beepManager = new BeepManager(activity);
ambientLightManager = new AmbientLightManager(activity);
cameraManager = new CameraManager(activity);
cameraManager.setFullScreenScan(isFullScreenScan);
cameraManager.setFramingRectRatio(framingRectRatio);
cameraManager.setFramingRectVerticalOffset(framingRectVerticalOffset);
cameraManager.setFramingRectHorizontalOffset(framingRectHorizontalOffset);
if(ivTorch !=null && activity.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)){
ivTorch.setOnClickListener(v -> cameraManager.setTorch(!ivTorch.isSelected()));
cameraManager.setOnSensorListener((torch, tooDark, ambientLightLux) -> {
if(tooDark){
if(ivTorch.getVisibility() != View.VISIBLE){
ivTorch.setVisibility(View.VISIBLE);
}
}else if(!torch){
if(ivTorch.getVisibility() == View.VISIBLE){
ivTorch.setVisibility(View.INVISIBLE);
}
}
});
cameraManager.setOnTorchListener(torch -> ivTorch.setSelected(torch));
}
callback = new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (holder == null) {
Log.e(TAG, "*** WARNING *** surfaceCreated() gave us a null surface!");
}
if (!hasSurface) {
hasSurface = true;
initCamera(holder);
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
hasSurface = false;
}
};
hasCameraFlash = activity.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
initCameraManager();
onCaptureListener = (result, barcode, scaleFactor) -> {
inactivityTimer.onActivity();
@@ -257,17 +217,15 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
@Override
public void onResume(){
beepManager.updatePrefs();
ambientLightManager.start(cameraManager);
inactivityTimer.onResume();
surfaceHolder.addCallback(callback);
if (hasSurface) {
initCamera(surfaceHolder);
} else {
surfaceHolder.addCallback(callback);
surfaceHolder.addCallback(this);
}
ambientLightManager.start(cameraManager);
}
@@ -282,7 +240,7 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
beepManager.close();
cameraManager.closeDriver();
if (!hasSurface) {
surfaceHolder.removeCallback(callback);
surfaceHolder.removeCallback(this);
}
}
@@ -327,6 +285,35 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
return false;
}
private void initCameraManager(){
cameraManager = new CameraManager(activity);
cameraManager.setFullScreenScan(isFullScreenScan);
cameraManager.setFramingRectRatio(framingRectRatio);
cameraManager.setFramingRectVerticalOffset(framingRectVerticalOffset);
cameraManager.setFramingRectHorizontalOffset(framingRectHorizontalOffset);
if(ivTorch !=null && hasCameraFlash){
ivTorch.setOnClickListener(v -> {
if(cameraManager!=null){
cameraManager.setTorch(!ivTorch.isSelected());
}
});
cameraManager.setOnSensorListener((torch, tooDark, ambientLightLux) -> {
if(tooDark){
if(ivTorch.getVisibility() != View.VISIBLE){
ivTorch.setVisibility(View.VISIBLE);
}
}else if(!torch){
if(ivTorch.getVisibility() == View.VISIBLE){
ivTorch.setVisibility(View.INVISIBLE);
}
}
});
cameraManager.setOnTorchListener(torch -> ivTorch.setSelected(torch));
}
}
/**
* 初始化Camera
* @param surfaceHolder
@@ -357,6 +344,27 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (holder == null) {
Log.e(TAG, "*** WARNING *** surfaceCreated() gave us a null surface!");
}
if (!hasSurface) {
hasSurface = true;
initCamera(holder);
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
hasSurface = false;
}
/**
* 处理变焦缩放
* @param isZoomIn
@@ -485,7 +493,8 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
onResult(result);
}
/**
/**';, mnb
*
* 接收扫码结果，想支持连扫时，可将{@link #continuousScan(boolean)}设置为{@code true}
* 如果{@link #isContinuousScan}支持连扫，则默认重启扫码和解码器；当连扫逻辑太复杂时，
* 请将{@link #autoRestartPreviewAndDecode(boolean)}设置为{@code false}，并手动调用{@link #restartPreviewAndDecode()}