set initMap to center

[krmao]

any idea set initMap to center ?or set padingTop and use android:clipToPadding="false" ,but not useable that is set some blank at padding left and padding top

[moagrius]

i'm really not clear what you're asking

[krmao]

sorry , my English is so poor! please see the image

1. I can't set the smallest map in the tileView's center. such as android ImageView's android:scaleType="fitCenter". but TileView looks like android:scaleType="centerCrop". this function is like IOS-UIScrollView-contentOffset property.
2. I find TileView setPadding is unused. I want to use set padding with android:clipToPadding to solve the first problem to let the smallest map show at padding area , because set paddingTop can let the smallest map looks like at View's center.

3. clear the titleView to redraw another map data I used these code:

   //reset titleView
   if (getDetailLevelManager().getCurrentDetailLevel() != null)
      getDetailLevelManager().resetDetailLevels();  

   the problem is not really clear, You can see the problem on the image I uploaded where marked by red 'x',also have some last-map-data cache show with new-map-data together.this function is looks like TileView.reset() or TileView.clear().

[moagrius]

i think you might want to do something like this gentleman did in his fork: https://github.com/moagrius/TileView/pull/358

then you'd probably have to scroll to center. i'm not terribly familiar with the whole "fitMode" stuff and have never used it personally.

[krmao]

Thank you guys ,you reply so quickly!

I find the solution. For first question : if the primary picture's size is 5432 x 2612, i change it's canvas to 6000 x 6000 by photoshop. and it is shown on the center of TileView like ImageView's fitCenter.

For secondQuestion:

I Rewrite TileView,and add function named "reset", which can reused TileView to changed mapData.

   public TileView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context);
    }

    public void init(Context context) {
        mTileCanvasViewGroup = new TileCanvasViewGroup(context);
        addView(mTileCanvasViewGroup);
        mCompositePathView = new CompositePathView(context);
        addView(mCompositePathView);
        mScalingLayout = new ScalingLayout(context);
        addView(mScalingLayout);
        mMarkerLayout = new MarkerLayout(context);
        addView(mMarkerLayout);
        mCalloutLayout = new CalloutLayout(context);
        addView(mCalloutLayout);

        mDetailLevelManager.setDetailLevelChangeListener(this);
        mTileCanvasViewGroup.setTileRenderListener(this);
        addZoomPanListener(this);
        mRenderThrottleHandler = new RenderThrottleHandler(this);
        requestRender();
    }

    public void reset(Context context) {
        removeView(mTileCanvasViewGroup);
        removeView(mCompositePathView);
        removeView(mScalingLayout);
        removeView(mMarkerLayout);
        removeView(mCalloutLayout);
        mDetailLevelManager = new DetailLevelManager();
        init(context);
    }

and then use it, please notice the setScale

@SuppressWarnings("SuspiciousNameCombination")
    public void setData(Activity activity, String layerId, String prePath, String extension) {
        this.activity = activity;
        layerEntity = LightMapUtil.getMapDataSize().get(layerId);
        if (layerEntity == null)
            return;
        reset(activity);
        setSize(layerEntity.size.getWidth(), layerEntity.size.getHeight());
        // detail levels
        addDetailLevel(1.000f, prePath + layerEntity.id + MAP_DATA_MULTIPLE + "/1000/%d_%d" + extension);
        addDetailLevel(0.500f, prePath + layerEntity.id + MAP_DATA_MULTIPLE + "/500/%d_%d" + extension);
        addDetailLevel(0.250f, prePath + layerEntity.id + MAP_DATA_MULTIPLE + "/250/%d_%d" + extension);
        addDetailLevel(0.125f, prePath + layerEntity.id + MAP_DATA_MULTIPLE + "/125/%d_%d" + extension);
        // lets center all markers both horizontally and vertically
        defineBounds(0, 0, layerEntity.size.getWidth(), layerEntity.size.getHeight());
        frameTo(layerEntity.size.getWidth() / 2, layerEntity.size.getHeight() / 2);
        postDelayed(new Runnable() {
            @Override
            public void run() {
                setScale(MAX_SCALE);
                postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        invalidate();
                        setScale(MIN_SCALE);
                    }
                }, 100);
            }
        }, 100);
    }

this is my perfect result:

[moagrius]

glad you got it worked out