Android实现静默拍照功能

2023-07-22 16:11:06 100

publicclassCameraPreviewextendsSurfaceViewimplementsSurfaceHolder.Callback{ privateSurfaceHoldermHolder; privateCameramCamera; publicCameraPreview(Contextcontext,Cameracamera){ super(context); //初始化Camera对象 mCamera=camera; //得到SurfaceHolder对象 mHolder=getHolder(); //添加回调，得到Surface的三个声明周期方法 mHolder.addCallback(this); //deprecatedsetting,butrequiredonAndroidversionspriorto3.0 mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } @Override publicvoidsurfaceCreated(SurfaceHolderholder){ try{ //设置预览方向 mCamera.setDisplayOrientation(90); //把这个预览效果展示在SurfaceView上面 mCamera.setPreviewDisplay(holder); //开启预览效果 mCamera.startPreview(); }catch(IOExceptione){ //Log.d(TAG,"Errorsettingcamerapreview:"+e.getMessage()); } } @Override publicvoidsurfaceChanged(SurfaceHolderholder,intformat,intwidth,intheight){ if(holder.getSurface()==null){ return; } //停止预览效果 mCamera.stopPreview(); //重新设置预览效果 try{ mCamera.setPreviewDisplay(mHolder); }catch(IOExceptione){ e.printStackTrace(); } mCamera.startPreview(); } @Override publicvoidsurfaceDestroyed(SurfaceHolderholder){ } }

publicclassCameraActivityextendsBaseActivity{ privateFrameLayoutcameraFrame; privateCameramCamera; privateTextViewcameraTv; @Override protectedvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_camera); cameraFrame=(FrameLayout)findViewById(R.id.camera_frame); cameraTv=(TextView)findViewById(R.id.camera_tv); intnumberOfCameras=Camera.getNumberOfCameras();//获取摄像头个数 //遍历摄像头信息 for(intcameraId=0;cameraId

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Android实现静默拍照功能

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