Android 自己制作的相册--效果还不错哦

 

这是我学习Android时做的一个小程序，程序主要功能是实现一个迷你相册的功能，可以在虚拟机上看到很不错的效果。

我设置屏幕的大小为800*600

 

/*

*ImageSwitcherGallery.java

*/

 

package android.study_layout;

 

import android.app.Activity;import android.content.Context;import android.os.Bundle;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.*;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ViewSwitcher.ViewFactory;

 

public class ImageSwitcherGallery extends Activity implementsOnItemSelectedListener, ViewFactory {private ImageSwitcher image_switcher;private Gallery gallery;

private Integer[] mThumbIds = { R.drawable.a1, R.drawable.a2, R.drawable.a3, R.drawable.a4, R.drawable.a5, };

private Integer[] mImageIds = { R.drawable.a1, R.drawable.a2,   R.drawable.a3, R.drawable.a4, R.drawable.a5, };

@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.image_switcher_gallery);

image_switcher = (ImageSwitcher) findViewById(R.id.switcher);image_switcher.setFactory(this);

image_switcher.setInAnimation(AnimationUtils.loadAnimation(this,  android.R.anim.fade_in));image_switcher.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 image = new ImageView(this);image.setBackgroundColor(0xFF000000);image.setScaleType(ImageView.ScaleType.FIT_XY);image.setLayoutParams(new ImageSwitcher.LayoutParams(  LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));return image;}

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 image = new ImageView(mContext);

 image.setImageResource(mThumbIds[position]); image.setAdjustViewBounds(true); image.setLayoutParams(new Gallery.LayoutParams(   LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); return image;}

private Context mContext;

}

@Overridepublic void onItemSelected(AdapterView<?> parent, View view, int position, long id) { ImageSwitcher image_switcher = (ImageSwitcher) findViewById(R.id.switcher); image_switcher.setImageResource(mImageIds[position]);

}

@Overridepublic void onNothingSelected(AdapterView<?> parent) {}}

 

xml文件

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:orientation="vertical">    <ImageSwitcher android:id="@+id/switcher" android:layout_width="match_parent" android:layout_height="450dip" android:layout_alignParentLeft="true" android:layout_alignParentTop="true"/>

<Gallery android:id="@+id/gallery" android:layout_width="fill_parent" android:layout_height="120dip" android:background="#55000000" android:layout_alignParentLeft="true" android:layout_alignParentBottom="true" android:gravity="center_vertical" android:spacing="30dip"/>

</RelativeLayout>