使用ImageSwitcher点击按钮浏览图片

来源：互联网发布：济南关键词优化外包编辑：程序博客网时间：2024/05/12 06:46

<LinearLayout 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"    android:orientation="vertical"    tools:context=".MainActivity" >    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="250dp"         android:gravity="center">        <ImageSwitcher            android:id="@+id/IS01"            android:layout_width="wrap_content"            android:layout_height="wrap_content"             >        </ImageSwitcher>    </LinearLayout>    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button            android:id="@+id/pre"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="上一张" />        <Button            android:id="@+id/next"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="下一张" />    </LinearLayout></LinearLayout>

package com.example.imageswitcher;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.ViewSwitcher.ViewFactory;public class MainActivity extends Activity implements ViewFactory, OnClickListener {private final static Integer[] INTEGERS = {R.drawable.a,R.drawable.d,R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f,R.drawable.g,R.drawable.h,};ImageSwitcher imageSwitcher;Button button,button2;private  static int index=0;private final static int DOWN_ID = 0x123456;private final static int UP_ID = 0x123456;private final static int SWICHER_ID = 0x123456;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);imageSwitcher = (ImageSwitcher)findViewById(R.id.IS01);button = (Button)findViewById(R.id.pre);button2 = (Button)findViewById(R.id.next);imageSwitcher.setFactory(this);imageSwitcher.setImageResource(INTEGERS[index]);button.setOnClickListener(this);button2.setOnClickListener(this);}@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;}@Overridepublic View makeView() {return new ImageView(this);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.pre:index--;if(index<0){index = INTEGERS.length-1;}imageSwitcher.setImageResource(INTEGERS[index]);break;case R.id.next:index++;if(index>=INTEGERS.length){index = 0;}imageSwitcher.setImageResource(INTEGERS[index]);break;}}}

0 0