HarmonyOS 点击事件的实现-蒲公英云

HarmonyOS 点击事件的实现

HarmonyOS 点击事件使用的方法

HarmonyOS 点击事件使用 setClickedListener

编译器提醒换是很不错的

点击事件具体的实现

xml 写一个button 如下

<?xml version="1.0" encoding="utf-8"?>
<DependentLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:background_element="#3387CEFA">
    <Button
        ohos:id="$+id:button1"
        ohos:height="50vp"
        ohos:width="100vp"
        ohos:center_in_parent="true"
        ohos:background_element="#00FFFF"
        ohos:text="Java"
        ohos:text_alignment="center"
        ohos:text_size="20fp"/>
</DependentLayout>

java 代码

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.ability.OnClickListener;
import ohos.aafwk.content.Intent;
import ohos.agp.components.AttrHelper;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
import ohos.agp.window.dialog.ToastDialog;
import java.util.logging.Logger;
public class MainAbilitySlice extends AbilitySlice {
    private Button button1;
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main);
        button1 = (Button) findComponentById(ResourceTable.Id_button1);
        button1.setClickedListener(new Component.ClickedListener() {
            @Override
            public void onClick(Component component) {
                new ToastDialog(getContext()).setText("点击了").show();
            }
        });
    }
    @Override
    public void onActive() {
        super.onActive();
    }
    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}