HarmonyOS开发10：案例——统计点击次数

修改ability_main.xml文件

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:alignment="center"
    ohos:orientation="vertical">

    <Text
        ohos:id="$+id:text1"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="点击小游戏"
        ohos:text_size="40vp"
        />

    <Button
        ohos:id="$+id:but1"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:text="开始"
        ohos:text_size="100"
        ohos:background_element="#FFD4C88D"/>

</DirectionalLayout>

MainAbilitySlice.java整体代码：

package com.example.listenapplicantion9.slice;

import com.example.listenapplicantion9.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
import ohos.agp.components.Text;

public class MainAbilitySlice extends AbilitySlice implements Component.ClickedListener {
    Button but;
    Text text;
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main);

        //1.找到文本和按钮组件
        but = (Button) findComponentById(ResourceTable.Id_but1);
        text = (Text) findComponentById(ResourceTable.Id_text1);

        //2.给按钮设置单击事件
        but.setClickedListener(this);
    }

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }

    //如果flag为true，表示当前是第一次按按钮
    boolean flag = true;
    long startTime = 0;
    //计数
    int count = 0;

    @Override
    public void onClick(Component component) {
        count++;
        //统计十秒之内点击多少次，并在文本框展示
        if(flag) {
            startTime = System.currentTimeMillis();
            //第一次游戏开始，修改按钮文字内容
            but.setText("请疯狂点我");
            //修改标记
            flag = false;
        }else {
            if ((System.currentTimeMillis() - startTime) <= 10000) {
                text.setText(count + "");
            }else {
                but.setText("结束");
                //取消按钮的点击事件，让该按钮不能再被点击
                but.setClickable(false);
            }
        }
    }
}

int转string的三种方式：

• num + “”
• String.valueOf(num)
• Integer.toString(num)

标签：10,void,按钮,but,HarmonyOS,点击,ohos,import,public
来源： https://blog.csdn.net/weixin_45707277/article/details/118964504