android.graphics.drawable.NinePatchDrawable#setColorFilter()源码实例Demo

@SuppressLint("InflateParams")
@Override public void onShow(@NonNull WindowManager windowManager, @NonNull View view, @NonNull FolderModel folder) {
    this.windowManager = windowManager;
    Context context = view.getContext();
    drawerHolder = new AppDrawerHolder(LayoutInflater.from(view.getContext()).inflate(R.layout.floating_folder_layout, null, false), this);
    adapter = new FloatingFolderAppsAdapter(new ArrayList<AppsModel>(), getPresenter(), false);
    drawerHolder.recycler.setAdapter(adapter);
    drawerHolder.emptyText.setText(R.string.no_apps);
    drawerHolder.recycler.setEmptyView(drawerHolder.emptyText);
    drawerHolder.folderName.setText(folder.getFolderName());
    NinePatchDrawable drawable = (NinePatchDrawable) drawerHolder.appDrawer.getBackground();
    drawable.setColorFilter(new PorterDuffColorFilter(folder.getColor(),
            PorterDuff.Mode.MULTIPLY));
    setupParams(windowManager);
    appsLoader = new SelectedAppsLoader(context, folder.getId());
    appsLoader.registerListener(folder.hashCode(), getPresenter());
    appsLoader.startLoading();
}
 

/**
 * @param canvas The canvas you need to draw on.
 * @param point The Point consists of the x y coordinates from left bottom to right top.
 * Like is
 *
 * 3
 * 2
 * 1
 * 0 1 2 3 4 5
 */
private void drawPopup(Canvas canvas, float num, Point point, int PopupColor) {
    String numStr = showFloatNumInPopup ? String.valueOf(num) : String.valueOf(Math.round(num));
    boolean singularNum = (numStr.length() == 1);
    int sidePadding = MyUtils.dip2px(getContext(), singularNum ? 8 : 5);
    int x = point.x;
    int y = point.y - MyUtils.dip2px(getContext(), 5);
    Rect popupTextRect = new Rect();
    popupTextPaint.getTextBounds(numStr, 0, numStr.length(), popupTextRect);
    Rect r = new Rect(x - popupTextRect.width() / 2 - sidePadding, y
            - popupTextRect.height()
            - bottomTriangleHeight
            - popupTopPadding * 2
            - popupBottomMargin, x + popupTextRect.width() / 2 + sidePadding,
            y + popupTopPadding - popupBottomMargin + popupBottomPadding);

    NinePatchDrawable popup =
            (NinePatchDrawable) getResources().getDrawable(R.drawable.popup_white);
    popup.setColorFilter(new PorterDuffColorFilter(PopupColor, PorterDuff.Mode.MULTIPLY));
    popup.setBounds(r);
    popup.draw(canvas);
    canvas.drawText(numStr, x, y - bottomTriangleHeight - popupBottomMargin, popupTextPaint);
}
 

/***
 * Method called from APIs below 21 to setup Progress Color
 */
private void setupProgressColor() {
    //load up the drawable and apply color
    LayerDrawable ld = (LayerDrawable) getProgressDrawable();
    ScaleDrawable shape = (ScaleDrawable) (ld.findDrawableByLayerId(android.R.id.progress));
    shape.setColorFilter(mProgressColor, PorterDuff.Mode.SRC_IN);

    //set the background to transparent
    NinePatchDrawable ninePatchDrawable = (NinePatchDrawable) (ld.findDrawableByLayerId(android.R.id.background));
    ninePatchDrawable.setColorFilter(Color.TRANSPARENT, PorterDuff.Mode.SRC_IN);
}
 

public static final Drawable tint9PatchDrawableFrame(@NonNull Context context, @ColorInt int tintColor) {
    final NinePatchDrawable toastDrawable = (NinePatchDrawable) getDrawable(context, R.drawable.toast_frame);
    toastDrawable.setColorFilter(new PorterDuffColorFilter(tintColor, PorterDuff.Mode.SRC_IN));
    return toastDrawable;
}
 

static Drawable tint9PatchDrawableFrame(@NonNull Context context, @ColorInt int tintColor) {
    final NinePatchDrawable toastDrawable = (NinePatchDrawable) getDrawable(context, R.drawable.toast_frame);
    toastDrawable.setColorFilter(new PorterDuffColorFilter(tintColor, PorterDuff.Mode.SRC_IN));
    return toastDrawable;
}