背景
Toast提示是每个项目必不可少的，鸿蒙如何实现类似android的提示呢，鉴于现在所参考资料几乎没有，于是自己封装了个工具类，可供大家参考
/** * author : liupeng * QQ群 : 鸿蒙开发技术讨论QQ群：1084365075 * date : 2021/1/13 * desc : toast简单封装 */ public class Toast { public static final int LENGTH_LONG = 4000; public static final int LENGTH_SHORT = 2000; public enum ToastLayout { DEFAULT, CENTER, TOP, BOTTOM, } public static void showShort(Context mContext, String content) { createTost(mContext, content, LENGTH_SHORT, ToastLayout.DEFAULT); } public static void showLong(Context mContext, String content) { createTost(mContext, content, LENGTH_LONG, ToastLayout.DEFAULT); } public static void show(Context mContext, String content) { createTost(mContext, content, LENGTH_SHORT, ToastLayout.DEFAULT); } public static void show(Context mContext, String content, int duration) { createTost(mContext, content, duration, ToastLayout.DEFAULT); } public static void show(Context mContext, String content, ToastLayout layout) { createTost(mContext, content, LENGTH_SHORT, layout); } public static void show(Context mContext, String content, int duration, ToastLayout layout) { createTost(mContext, content, duration, layout); } public static void showShort(Context mContext, int content) { createTost(mContext, getString(mContext, content), LENGTH_SHORT, ToastLayout.DEFAULT); } public static void showLong(Context mContext, int content) { createTost(mContext, getString(mContext, content), LENGTH_LONG, ToastLayout.DEFAULT); } public static void show(Context mContext, int content) { createTost(mContext, getString(mContext, content), LENGTH_SHORT, ToastLayout.DEFAULT); } public static void show(Context mContext, int content, int duration) { createTost(mContext, getString(mContext, content), duration, ToastLayout.DEFAULT); } public static void show(Context mContext, int content, ToastLayout layout) { createTost(mContext, getString(mContext, content), LENGTH_SHORT, layout); } public static void show(Context mContext, int content, int duration, ToastLayout layout) { createTost(mContext, getString(mContext, content), duration, layout); } private static void createTost(Context mContext, String content, int duration, ToastLayout layout) { DirectionalLayout toastLayout = new DirectionalLayout(mContext); DirectionalLayout.LayoutConfig textConfig = new DirectionalLayout.LayoutConfig(DirectionalLayout.LayoutConfig.MATCH_CONTENT, DirectionalLayout.LayoutConfig.MATCH_CONTENT); Text text = new Text(mContext); text.setText(content); text.setTextColor(new Color(Color.getIntColor("#ffffff"))); text.setPadding(vp2px(mContext, 16), vp2px(mContext, 4), vp2px(mContext, 16), vp2px(mContext, 4)); text.setTextSize(vp2px(mContext, 12)); text.setBackground(buildDrawableByColorRadius(Color.getIntColor("#70000000"), vp2px(mContext, 20))); text.setLayoutConfig(textConfig); toastLayout.addComponent(text); int mLayout = LayoutAlignment.CENTER; switch (layout) { case TOP: mLayout = LayoutAlignment.TOP; break; case BOTTOM: mLayout = LayoutAlignment.BOTTOM; break; case CENTER: mLayout = LayoutAlignment.CENTER; break; } ToastDialog toastDialog = new ToastDialog(mContext); toastDialog.setComponent(toastLayout); toastDialog.setSize(DirectionalLayout.LayoutConfig.MATCH_CONTENT, DirectionalLayout.LayoutConfig.MATCH_CONTENT); toastDialog.setAlignment(mLayout); toastDialog.setTransparent(true); toastDialog.setDuration(duration); toastDialog.show(); } private static ohos.agp.components.element.Element buildDrawableByColorRadius(int color, float radius) { ShapeElement drawable = new ShapeElement(); drawable.setShape(0); drawable.setRgbColor(RgbColor.fromArgbInt(color)); drawable.setCornerRadius(radius); return drawable; } private static String getString(Context mContent, int resId) { try { return mContent.getResourceManager().getElement(resId).getString(); } catch (Exception e) { e.printStackTrace(); } return ""; } private static int vp2px(Context context, float vp) { DisplayAttributes attributes = DisplayManager.getInstance().getDefaultDisplay(context).get().getAttributes(); return (int) (attributes.densityPixels * vp); } }
