如何在单击时选择特定的图块并在tileview android中为其上的位图充气

Question

我Tileview使用TileView库显示一个大图像

现在我想在特定的瓷砖上显示时在矩形边界显示一个圆圈.

如何点击哪个瓷砖？以及如何显示BitMmap上面的那个瓷砖？

public class LargeImageTileViewActivity extends TileViewActivity {
    TileView tileView;
    @Override
    public void onCreate( Bundle savedInstanceState ) {

        super.onCreate( savedInstanceState );

        // multiple references
        tileView = getTileView();

        // by disabling transitions, we won't see a flicker of background color when moving between tile sets
        tileView.setTransitionsEnabled( false );

        // size of original image at 100% scale
        tileView.setSize( 2835, 4289 );

        // detail levels
        tileView.addDetailLevel( 1.000f, "tiles/painting/1000/%col%_%row%.jpg");
        tileView.addDetailLevel( 0.500f, "tiles/painting/500/%col%_%row%.jpg");
        tileView.addDetailLevel( 0.250f, "tiles/painting/250/%col%_%row%.jpg");
        tileView.addDetailLevel( 0.125f, "tiles/painting/125/%col%_%row%.jpg");

        // set scale to 0, but keep scaleToFit true, so it'll be as small as possible but still match the container
        tileView.setScale( 0 );

        // let's use 0-1 positioning...
        tileView.defineRelativeBounds( 0, 0, 1,  1 );

        // frame to center
        frameTo( 0.5, 0.5 );
        tileView.addTileViewEventListener( listener );
    }
    private TileViewEventListenerImplementation listener = new TileViewEventListenerImplementation(){
        public void onTap( int x, int y ) {
            SampleCallout callout = new SampleCallout(LargeImageTileViewActivity.this);


            tileView.slideToAndCenter(x, y);
            //Toast.makeText(mContext, "Center " + tempStore.getCenterX() + " " + tempStore.getCenterY(), Toast.LENGTH_SHORT).show();
            tileView.addCallout(callout, x, y, -0.5f, -1.0f);

            callout.transitionIn();
        }
    };
}

Answer 1

从我在图书馆中挖掘一下,在我看来,如果没有修改代码你将无法获得平铺(你可能不需要获得平铺,请参阅选项2中的更多内容),这是可行的,因为它是开源的,所以你可以在本地进行修改,然后从那里开始.

第一种选择:

首先需要修改:

在https://github.com/moagrius/TileView/blob/master/src/com/qozix/tileview/detail/Det​​ailManager.java

添加以下代码:

public DetailLevel getCurrentDetailLevel() {
    return currentDetailLevel;
}

在https://github.com/moagrius/TileView/blob/master/src/com/qozix/tileview/TileView.java

public DetailManager getDetailManager() {
    return detailManager;
}

这会在DetailLevel中公开您需要的方法,例如

public LinkedList<Tile> getIntersections()

这将返回当前视图端口中的Tiles,每个tile都知道它由left/right和top/bottom限定,因此您可以遍历tile并找到您单击的那个.

第二种选择(如果可能,建议):

既然您知道所有事物的所有内容,您可以简单地添加HotSpots,在库中似乎HotSpots是支持点击侦听器的rects.

您可以像这样添加HotSpot:

HotSpot hotSpot = new HotSpot(left, top, right, bottom);
hotSpot.setHotSpotEventListener(this);
tileView.addHotSpot(hotSpot);

 ....

 public void onHotSpotTap(HotSpot hotSpot, int x, int y){
      Do your gui update using the supplied hotSpot above
 }

更多信息:https: //github.com/moagrius/TileView/blob/master/src/com/qozix/tileview/hotspots/HotSpot.java

添加圆圈

该库支持标记,您只需添加一个图像视图,将圆圈作为标记,就像这样

ImageView view = new ImageView (this);
view.setImageResource(circleId);
tileView.addMarker (view, tile.x, tile.y);