基于sdk6，DevEco Studio 2.2 Beta2的堆叠标签组件

package com.kongzue.stacklabelview; import com.kongzue.stacklabelview.interfaces.OnLabelClickListener; import com.kongzue.stacklabelview.utils.AttrUtils; import ohos.agp.components.*; import ohos.agp.components.element.ElementScatter; import ohos.agp.utils.Color; import ohos.agp.window.service.DisplayManager; import ohos.app.Context; import ohos.hiviewdfx.HiLog; import ohos.hiviewdfx.HiLogLabel; import java.util.ArrayList; import java.util.List; /** * Author: @Kongzue * Github: https://github.com/kongzue/ * Homepage: http://kongzue.com/ * Mail: [email protected] * * @since 2018/10/24 20:58 */ public class StackLabel extends ComponentContainer implements Component.EstimateSizeListener, ComponentContainer.ArrangeListener { private static HiLogLabel hiLogLabel = new HiLogLabel(HiLog.LOG_APP, 0x222, "my_app"); private int textColor = 0; private int textSize = 0; private int paddingVertical = 0; private int paddingHorizontal = 0; private int itemMargin = 0; private int itemMarginVertical = 0; private int itemMarginHorizontal = 0; private int maxLines = 0; private boolean deleteButton = false; private int deleteButtonImage = -1; private int labelBackground = -1; private boolean selectMode = false; private int selectBackground = -1; private int selectTextColor = -1; private int maxSelectNum = 0; private int minSelectNum = 0; private OnLabelClickListener onLabelClickListener; private Context context; private List<String> labels; private int widthSize; private String loadLabelsArray; /** * 初始化 * * @param context context */ public StackLabel(Context context) { super(context); this.context = context; } /** * 初始化 * * @param context context * @param attrs attrs */ public StackLabel(Context context, AttrSet attrs) { super(context, attrs); this.context = context; loadAttrs(context, attrs); } /** * 初始化 * * @param context context * @param attrs attrs * @param defStyleAttr defStyleAttr */ public StackLabel(Context context, AttrSet attrs, int defStyleAttr) { super(context, attrs); this.context = context; loadAttrs(context, attrs); } private void loadAttrs(Context context, AttrSet attrs) { try { // 默认值 textColor = Color.argb(230, 0, 0, 0); textSize = dp2px(12); paddingVertical = dp2px(8); paddingHorizontal = dp2px(12); itemMargin = dp2px(4); deleteButton = false; textColor = AttrUtils.getColorValueByAttr(attrs, "textColor", new Color(textColor)).getValue(); textSize = AttrUtils.getDimensionValueByAttr(attrs, "textSize", textSize); paddingVertical = AttrUtils.getDimensionValueByAttr(attrs, "paddingVertical", paddingVertical); paddingHorizontal = AttrUtils.getDimensionValueByAttr(attrs, "paddingHorizontal", paddingHorizontal); itemMargin = AttrUtils.getDimensionValueByAttr(attrs, "itemMargin", itemMargin); itemMarginVertical = AttrUtils.getDimensionValueByAttr(attrs, "itemMarginVertical", itemMarginVertical); itemMarginHorizontal = AttrUtils.getDimensionValueByAttr(attrs, "itemMarginHorizontal", itemMarginHorizontal); deleteButton = AttrUtils.getBooleanValueByAttr(attrs, "deleteButton", deleteButton); deleteButtonImage = AttrUtils.getIntValueByAttr(attrs, "deleteButtonImage", deleteButtonImage); labelBackground = AttrUtils.getIntValueByAttr(attrs, "labelBackground", labelBackground); selectMode = AttrUtils.getBooleanValueByAttr(attrs, "selectMode", selectMode); selectBackground = AttrUtils.getIntValueByAttr(attrs, "selectBackground", selectBackground); selectTextColor = AttrUtils.getColorValueByAttr(attrs, "selectTextColor", new Color(selectTextColor)).getValue(); maxSelectNum = AttrUtils.getIntValueByAttr(attrs, "maxSelectNum", maxSelectNum); minSelectNum = AttrUtils.getIntValueByAttr(attrs, "minSelectNum", minSelectNum); maxLines = AttrUtils.getIntValueByAttr(attrs, "maxLines", minSelectNum); // 加载值 if (minSelectNum > maxSelectNum && maxSelectNum != 0) { minSelectNum = 0; } loadLabelsArray = AttrUtils.getStringValueByAttr(attrs, "loadLabelsArray", loadLabelsArray); if (selectBackground == -1) { selectBackground = ResourceTable.Graphic_rect_label_bkg_select_normal; } if (labelBackground == -1) { labelBackground = ResourceTable.Graphic_rect_normal_label_button; } } catch (Exception e) { HiLog.info(hiLogLabel, "error-->" + e.getMessage()); } setEstimateSizeListener(this); setArrangeListener(this); } private int dp2px(float dpValue) { return (int) (0.5f + dpValue * DisplayManager.getInstance().getDefaultDisplay(context).get().getAttributes().densityPixels); } private float px2dp(int pxValue) { return (pxValue / DisplayManager.getInstance().getDefaultDisplay(context).get().getAttributes().densityPixels); } private List<Component> items; private int newHeight = 0; @Override public boolean onArrange(int i, int i1, int i2, int i3) { return false; } @Override public boolean onEstimateSize(int width, int i1) { widthSize = EstimateSpec.getSize(width); setEstimatedSize(widthSize, newHeight); // 设置宽高 refreshViews(); return false; } private void refreshViews() { int maxWidth = getEstimatedWidth(); if (labels != null && !labels.isEmpty()) { newHeight = 0; if (items != null && !items.isEmpty()) { int l1 = 0, t1 = 0, r1 = 0, b1 = 0, lines = 0; for (int i = 0; i < items.size(); i++) { Component item = items.get(i); int mWidth = Component.EstimateSpec.getSizeWithMode(maxWidth, EstimateSpec.UNCONSTRAINT); // AT_MOST：先按照最大宽度计算，如果小于则按实际值，如果大于，按最大宽度 int mHeight = Component.EstimateSpec.getSizeWithMode(0, EstimateSpec.UNCONSTRAINT); // UNSPECIFIED：不确定，根据实际情况计算 item.estimateSize(mWidth, mHeight); int childWidth = item.getEstimatedWidth(); int childHeight = item.getEstimatedHeight(); if (childWidth > maxWidth) { childWidth = maxWidth; } if ((l1 + childWidth) > maxWidth) { l1 = 0; t1 = t1 + childHeight; lines++; } if (maxLines > 0 && lines >= maxLines) { item.setVisibility(HIDE); invalidate(); } else { r1 = l1 + childWidth; if (childWidth > maxWidth) { r1 = maxWidth; } b1 = t1 + childHeight; item.arrange(l1, t1, r1, b1); l1 = l1 + childWidth; newHeight = t1 + childHeight; } } } } } public List<String> getLabels() { return labels; } public StackLabel setLabels(List<String> l) { labels = l; reloadViews(); return this; } public boolean remove(int index) { if (labels == null) { return false; } labels.remove(index);