ScrollView莫名滚动

2014-05-16 11:30:48 330 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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Unity UI适配核心：Canvas Scaler模式解析与2023版避坑指南 UI适配是游戏与应用开发中的基础挑战，其核心在于确保界面元素在不同屏幕分辨率与设备上保持视觉一致与功能可用。原理上，系统通过坐标转换与缩放计算，将设计稿的布局映射到物理屏幕。技术价值在于提升用户体验的一致性与产品的跨平台兼容性。应用场景广泛覆盖手游、PC端应用及各类交互界面。本文聚焦Unity引擎中的Canvas Scaler组件，深入剖析其Scale With Screen Size等模式的工作原理，并结合锚点设置、安全区域处理等高频搜索热词，提供解决UI错位、拉伸及异形屏适配等常见问题的工程实践方案，帮阅读详情

一个ViewSwitcher，一个HorizontalScrollView，当ViewSwitcher切换内容时（调用showNext()）竟然会导致HorizontalScrollView也跟着滚动。



package inspur.hzt.test;



import android.app.Activity;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.View;

import android.widget.ViewSwitcher;



public class HSVActivity extends Activity {



    ViewSwitcher switcher;

    

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        

        setContentView(R.layout.activity_hsv);

        

        switcher = (ViewSwitcher) findViewById(R.id.viewSwitcher1);

        //hsv = (HorizontalScrollView) findViewById(R.id.horizontalScrollView1);

    }



    @Override

    public boolean onKeyDown(int keyCode, KeyEvent event) {

        

        if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT || keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {

            View v = getCurrentFocus();

            if (v.getId() == R.id.button1 || v.getId() == R.id.button2) {

                switcher.showNext(); //这里竟然会导致HorizontalScrollView也跟着滚动，不知道如何解决

                return true;

            }

        }



        return super.onKeyDown(keyCode, event);

    }



}



<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >



    <HorizontalScrollView

        android:id="@+id/horizontalScrollView1"

        android:layout_width="120dp"

        android:layout_height="30dp"

        android:layout_marginLeft="40dp"

        android:layout_marginRight="40dp"

        android:layout_marginTop="100dp"

        android:fillViewport="true" >



        <LinearLayout

            android:id="@+id/ll1"

            android:layout_width="1680dp"

            android:layout_height="match_parent"

            android:orientation="horizontal" >



            <TextView

                android:layout_width="120dp"

                android:layout_height="match_parent"

                android:focusable="true"

                android:text="TextView1"

                android:textColor="@color/textview_color"

                android:textSize="20sp" >



                    <requestFocus />

            </TextView>



            <TextView

                android:layout_width="120dp"

                android:layout_height="match_parent"

                android:focusable="true"

                android:text="TextView2"

                android:textColor="@color/textview_color"

                android:textSize="20sp" />

         

            <TextView

                android:layout_width="120dp"

                android:layout_height="match_parent"

                android:focusable="true"

                android:textSize="20sp"

                android:textColor="@color/textview_color"

                android:text="TextView3" />



        </LinearLayout>



    </HorizontalScrollView>



    <ViewSwitcher

        android:id="@+id/viewSwitcher1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="100dp" >



        <Button

            android:id="@+id/button1"

            android:layout_width="120dp"

            android:layout_height="100dp"

            android:nextFocusLeft="@id/button1"

            android:nextFocusRight="@id/button1"

            android:text="Button 1" />

        

        <Button

            android:id="@+id/button2"

            android:layout_width="120dp"

            android:layout_height="100dp"

            android:nextFocusLeft="@id/button2"

            android:nextFocusRight="@id/button2"

            android:text="Button 2" />

    </ViewSwitcher>



</LinearLayout>