Gallery和IamgeSwitcher协作幻灯片效果
今天学习了Android的Gallery，根据自己的喜好做了一个NBA球星的幻灯片，也算是一边学习，一边自娱自乐吧。。。
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package com.test.gallery;import android.app.Activity;import android.content.res.TypedArray;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.view.ViewGroup.LayoutParams;import android.view.animation.AnimationUtils;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.ViewSwitcher.ViewFactory;public class TestGallleryActivity extends Activity { int[] imgIds = new int[]{R.drawable.a1,R.drawable.a2,R.drawable.a3,R.drawable.a4, R.drawable.a5,R.drawable.a6,R.drawable.a7,R.drawable.a8, R.drawable.a9,R.drawable.a10,R.drawable.a11,R.drawable.a12, R.drawable.a13,R.drawable.a14,R.drawable.a15,R.drawable.a16}; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final ImageSwitcher switcher = (ImageSwitcher)findViewById(R.id.switcher); switcher.setInAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); switcher.setOutAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_out)); switcher.setFactory(new ViewFactory() { public View makeView() { ImageView img1 = new ImageView(TestGallleryActivity.this); img1.setBackgroundColor(0xff0000); img1.setScaleType(ImageView.ScaleType.FIT_CENTER); img1.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); return img1; } }); BaseAdapter adapter = new BaseAdapter(){ public int getCount() { // TODO Auto-generated method stub return imgIds.length; } public Object getItem(int position) { // TODO Auto-generated method stub return position; } public long getItemId(int position) { // TODO Auto-generated method stub return position; } public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub ImageView img2 = new ImageView(TestGallleryActivity.this); img2.setImageResource(imgIds[position]); img2.setScaleType(ImageView.ScaleType.FIT_XY); img2.setLayoutParams(new Gallery.LayoutParams(75,100)); TypedArray typedArray = obtainStyledAttributes(R.styleable.Gallery); img2.setBackgroundResource(typedArray.getResourceId(R.styleable.Gallery_android_galleryItemBackground,0)); return img2; }}; Gallery gallery = (Gallery)findViewById(R.id.gallery); gallery.setAdapter(adapter); gallery.setOnItemClickListener(new OnItemClickListener(){ public void onItemClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) { switcher.setImageResource(imgIds[arg2]); }}); }} |