Android触摸对焦

Question

我正在尝试制作一个自定义相机应用程序，让用户触摸屏幕进行对焦而非拍摄照片。 Android中是否有任何相关API支持？

public void takePhoto(File photoFile, String workerName, int width, int height, int  quality) { 
if (getAutoFocusStatus()){ 
    camera.autoFocus(new AutoFocusCallback() { 
     @Override 
     public void onAutoFocus(boolean success, Camera camera) { 
      camera.takePicture(shutterCallback, rawCallback, jpegCallback); 
     } 
    }); 
}else{ 
    camera.takePicture(shutterCallback, rawCallback, jpegCallback); 
} 

this.photoFile = photoFile; 
this.workerName = workerName; 
this.imageOutputWidth = width; 
this.imageOutputHeight = height; 
} 

public void takePhoto(File photoFile, int width, int height, int quality) { 
takePhoto(photoFile, null, width, height, quality); 
} 

Answer 1

如果你不想拍照，那么不要从autofocuscallback调用takepicture（）。 另外，如果您想专注于用户触摸屏幕的位置，则可以使用setFocusAreas（）设置聚焦区域。