Question

如何在我的自定义类的特定位置添加图像视图到我的相对布局，扩展相对布局并使该图像视图可拖动到特定的布局部分？
下面是我想要添加图像的自定义类那么，我应该在画布视图上添加图像还是仅仅在相对布局上添加？
请给我一个合适的解决方案。

public class CustomCompassView extends RelativeLayout {

int width;
int height;
int saparationRatio;

int captureRange;

private ImageView mImage;

public CustomCompassView(Context context) {
    super(context);
}

public CustomCompassView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
}

public CustomCompassView(Context context, AttributeSet attrs) {
    super(context, attrs);

    mImage = (ImageView) getChildAt(2);
}

@Override
protected void onDraw(Canvas canvas) {

    super.onDraw(canvas);

    width = this.getWidth();
    height = this.getHeight();
    saparationRatio = (width / 2) / 5;

    Log.e(AppConstant.LOG_TAG, "height: " + height + " & width: " + width);

    drawCircleAbove125(canvas);

}

protected void drawCircleAbove125(Canvas canvas) {

    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setColor(Color.BLACK);
    paint.setStyle(Paint.Style.FILL);
    paint.setStrokeWidth(0.0f);
    canvas.drawCircle(width / 2, height / 2, width / 2, paint);


}

Answer 1

在相对布局类中夸大布局

LayoutInflater inflater = LayoutInflater.from (context);
View v = inflater.inflate (R.layout.some_file, null, true);

this.addView (v);

您可以在充气布局中添加任何您喜欢的内容。

将Draggable Imageview添加到自定义类android的相对布局中

1 个答案: