CameraManager.java 文件源码

public Rect getFramingRectInPreview() {
    if (this.framingRectInPreview == null) {
        Rect rect = new Rect(getFramingRect());
        Point cameraResolution = this.configManager.getCameraResolution();
        Point screenResolution = this.configManager.getScreenResolution();
        rect.left = (rect.left * cameraResolution.y) / screenResolution.x;
        rect.right = (rect.right * cameraResolution.y) / screenResolution.x;
        rect.top = (rect.top * cameraResolution.x) / screenResolution.y;
        rect.bottom = (rect.bottom * cameraResolution.x) / screenResolution.y;
        this.framingRectInPreview = rect;
    }
    return this.framingRectInPreview;
}