鸿蒙系统下自定义Toast的实现

public static void showSimpleToast(Context context, String toastStr){
    new ToastDialog(context).setDuration(500).setText(toastStr).setAlignment(LayoutAlignment.CENTER).show();
}
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public static void showCustomText(Context context, String toastStr){
    Text textComponent = new Text(context);
    textComponent.setText(toastStr);
    int padding = DeviceUtils.vpToPx(context, 10);
    //设置间距为10vp
    textComponent.setPadding(padding, padding, padding, padding);
    textComponent.setTextColor(Color.WHITE);
    textComponent.setTextAlignment(TextAlignment.CENTER);
    textComponent.setTextSize(DeviceUtils.vpToPx(context, 20));
    ShapeElement shapeElement = new ShapeElement();
    shapeElement.setShape(ShapeElement.RECTANGLE);
    //设置背景半透明
    shapeElement.setRgbColor(RgbColor.fromArgbInt(Color.argb(127, 0, 0, 0)));
    textComponent.setBackground(shapeElement);
    //设置文字允许多行
    textComponent.setMultipleLine(true);

    DirectionalLayout.LayoutConfig layoutConfig = new DirectionalLayout.LayoutConfig();
    layoutConfig.width = ComponentContainer.LayoutConfig.MATCH_CONTENT;
    layoutConfig.height = ComponentContainer.LayoutConfig.MATCH_CONTENT;
    layoutConfig.alignment = LayoutAlignment.CENTER;
    textComponent.setLayoutConfig(layoutConfig);

    ToastDialog toastDialog =  new ToastDialog(context).setDuration(500).setComponent(textComponent).setAlignment(LayoutAlignment.CENTER);
    //设置弹框背景透明
    toastDialog.setTransparent(true);
    toastDialog.show();
}
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