練習檔 所以圖檔是放在drawable寫死的
layout拉一個Gallery
一個ImageSwitcher
===========================================================GalleryActivity.java
package com.test; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.animation.AnimationUtils; import android.widget.AdapterView; import android.widget.Gallery; import android.widget.ImageSwitcher; import android.widget.ImageView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.ViewSwitcher.ViewFactory; public class GalleryActivity extends Activity { private Gallery gallery; private ImageSwitcher imageSwitcher; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //建立畫廊相簿 gallery = (Gallery) findViewById(R.id.Gallery01); //建立相簿照片資料 Integer[] imageIds = { R.drawable.sakura01, R.drawable.sakura02, R.drawable.sakura03, R.drawable.sakura04, R.drawable.sakura05, R.drawable.sakura06, R.drawable.sakura07, R.drawable.sakura08, R.drawable.sakura01, R.drawable.sakura02, R.drawable.sakura03, R.drawable.sakura04, R.drawable.sakura05, R.drawable.sakura06, R.drawable.sakura07, R.drawable.sakura08, }; //將照片放在畫廊相簿內 gallery.setAdapter(new ImageAdapter(this, 80, 60, imageIds)); //設定畫廊相簿的監聽功能 gallery.setOnItemSelectedListener(new MyOnItemSelectedListener()); // 建立ImageSwitcher imageSwitcher = (ImageSwitcher)findViewById(R.id.ImageSwitcher01); // 在 ImageSwitcher中建立顯示組件 imageSwitcher.setFactory(new MyViewFactory()); // 設定照片進(in)出(out)的方式 imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(GalleryActivity.this, android.R.anim.fade_in)); imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(GalleryActivity.this, android.R.anim.fade_out)); // 設定初始相片 imageSwitcher.setImageResource(R.drawable.sakura01); } // 畫廊相簿的監聽器 private class MyOnItemSelectedListener implements OnItemSelectedListener { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { imageSwitcher.setImageResource((int)gallery.getItemIdAtPosition(position)); } @Override public void onNothingSelected(AdapterView<?> arg0) { // TODO Auto-generated method stub } } // ImageSwitcher 中的顯示組件 private class MyViewFactory implements ViewFactory { @Override public View makeView() { ImageView imageView = new ImageView(GalleryActivity.this); return imageView; } } }
==================================================================ImageAdapter.java
Created with colorer-take5 library. Type 'java' package com.test; import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Gallery; import android.widget.ImageView; public class ImageAdapter extends BaseAdapter{ private Context mContext; private Integer width; private Integer height; private Integer[] mImageIds; public ImageAdapter(Context mContext, Integer width, Integer height, Integer[] mImageIds) { this.mContext = mContext; this.mImageIds = mImageIds; this.width = width; this.height = height; } //取得gallery內的照片數量 public int getCount() { return mImageIds.length; } // public Object getItem(int position) { return null; } //取得gallery內的某一張照片的檔案 public long getItemId(int position) { return mImageIds[position]; } //將某一張照片安置在 imageView,且設定顯示方式,在中間,大小���wxh public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView = new ImageView(mContext); imageView.setImageResource(mImageIds[position]); imageView.setScaleType(ImageView.ScaleType.FIT_CENTER); imageView.setLayoutParams(new Gallery.LayoutParams(width, height)); return imageView; } }
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