任务6：使用ImageSwitcher和Gallery实现如下效果展示

来源：互联网发布：seo 用户体验 ppt 编辑：程序博客网时间：2024/05/22 13:18

【程序截屏】

一、

package com.example.ui6;import android.os.Bundle;import android.app.Activity;import android.content.Context;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.view.ViewGroup.LayoutParams;import android.view.Window;import android.view.animation.AnimationUtils;import android.widget.AdapterView;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.ViewSwitcher.ViewFactory;public class MainActivity extends Activity implements OnItemSelectedListener,ViewFactory {private ImageSwitcher is;private Gallery gallery;private Integer[] mThumbIds = { R.drawable.p1, R.drawable.p2,R.drawable.p3, R.drawable.p4, R.drawable.p6, };private Integer[] mImageIds = { R.drawable.p1, R.drawable.p2,R.drawable.p3, R.drawable.p4, R.drawable.p6, };@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_main);is = (ImageSwitcher) findViewById(R.id.switcher);is.setFactory(this);is.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_in));is.setOutAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_out));gallery = (Gallery) findViewById(R.id.gallery);gallery.setAdapter(new ImageAdapter(this));gallery.setOnItemSelectedListener(this);}@Overridepublic View makeView() {ImageView i = new ImageView(this);i.setBackgroundColor(0xFF000000);i.setScaleType(ImageView.ScaleType.FIT_CENTER);i.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));return i;}public class ImageAdapter extends BaseAdapter {public ImageAdapter(Context c) {mContext = c;}public int getCount() {return mThumbIds.length;}public Object getItem(int position) {return position;}public long getItemId(int position) {return position;}public View getView(int position, View convertView, ViewGroup parent) {ImageView i = new ImageView(mContext);i.setImageResource(mThumbIds[position]);i.setAdjustViewBounds(true);i.setLayoutParams(new Gallery.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));i.setBackgroundResource(R.drawable.p7);return i;}private Context mContext;}@Overridepublic void onItemSelected(AdapterView parent, View view, int position,long id) {is.setImageResource(mImageIds[position]);}@Overridepublic void onNothingSelected(AdapterView parent) {}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

二、

/** Automatically generated file. DO NOT MODIFY */package com.example.ui6;public final class BuildConfig {    public final static boolean DEBUG = true;}

三、

/* AUTO-GENERATED FILE.  DO NOT MODIFY. * * This class was automatically generated by the * aapt tool from the resource data it found.  It * should not be modified by hand. */package com.example.ui6;public final class R {    public static final class attr {    }    public static final class dimen {        /**  Default screen margins, per the Android Design guidelines.          Customize dimensions originally defined in res/values/dimens.xml (such as         screen margins) for sw720dp devices (e.g. 10" tablets) in landscape here.             */        public static final int activity_horizontal_margin=0x7f040000;        public static final int activity_vertical_margin=0x7f040001;    }    public static final class drawable {        public static final int ic_launcher=0x7f020000;        public static final int p1=0x7f020001;        public static final int p2=0x7f020002;        public static final int p3=0x7f020003;        public static final int p4=0x7f020004;        public static final int p5=0x7f020005;        public static final int p6=0x7f020006;        public static final int p7=0x7f020007;    }    public static final class id {        public static final int action_settings=0x7f080002;        public static final int gallery=0x7f080001;        public static final int switcher=0x7f080000;    }    public static final class layout {        public static final int activity_main=0x7f030000;    }    public static final class menu {        public static final int main=0x7f070000;    }    public static final class string {        public static final int action_settings=0x7f050001;        public static final int app_name=0x7f050000;        public static final int hello_world=0x7f050002;    }    public static final class style {        /**         Base application theme, dependent on API level. This theme is replaced        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.                Theme customizations available in newer API levels can go in            res/values-vXX/styles.xml, while customizations related to            backward-compatibility can go here.                Base application theme for API 11+. This theme completely replaces        AppBaseTheme from res/values/styles.xml on API 11+ devices.     API 11 theme customizations can go here.         Base application theme for API 14+. This theme completely replaces        AppBaseTheme from BOTH res/values/styles.xml and        res/values-v11/styles.xml on API 14+ devices.     API 14 theme customizations can go here.          */        public static final int AppBaseTheme=0x7f060000;        /**  Application theme.  All customizations that are NOT specific to a particular API-level can go here.          */        public static final int AppTheme=0x7f060001;    }}

四、

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <ImageSwitcher        android:id="@+id/switcher"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true" />    <Gallery        android:id="@+id/gallery"        android:layout_width="match_parent"        android:layout_height="80dp"        android:layout_alignParentBottom="true"        android:layout_alignParentLeft="true"        android:background="#550000aa"        android:gravity="center_vertical"        android:spacing="20dp" /></RelativeLayout>

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