1.MainActivity
package com.example.imageswitcher;
import android.app.ActionBar.LayoutParams;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
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 MainActivity extends Activity implements ViewFactory{
Integer[] image = {
R.drawable.katong1,
R.drawable.katong2,
R.drawable.katong3,
R.drawable.katong4,
R.drawable.katong5,
};
int count = 0;
private ImageSwitcher is;
private Gallery g;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
is = (ImageSwitcher)findViewById(R.id.imageSwitcher1);
is.setFactory(this);
is.setInAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in));
is.setInAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_out));
g = (Gallery)findViewById(R.id.gallery1);
g.setAdapter(new ImageAdapter(this));
g.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
is.setImageResource(image[arg2]);
}
});
}
public class ImageAdapter extends BaseAdapter {
public Context c ;
public int item;
public ImageAdapter(Context c){
this.c = c;
TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
item = a.getResourceId(R.styleable.Gallery1_android_galleryItemBackground, 0);
a.recycle();
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
// TODO Auto-generated method stub
ImageView imageView = new ImageView(c);
imageView.setImageResource(image[arg0]);
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setLayoutParams(new Gallery.LayoutParams(100,120));
imageView.setBackgroundResource(item);
return imageView;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return image.length;
}
}
@Override
public 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;
}
public void leftOnClick(View v){
is.setImageResource(image[count]);
count -- ;
if(count < 0){
count = 0;
}
}
public void rightOnClick(View v){
is.setImageResource(image[count]);
count ++;
if(count > 4){
count = 4;
}
}
@Override
public View makeView() {
// TODO Auto-generated method stub
ImageView imageView = new ImageView(this);
imageView.setBackgroundColor(0xFF000000);
imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
imageView.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
return imageView;
}
}
2.布局layout
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageSwitcher
android:id="@+id/imageSwitcher1"
android:layout_width="fill_parent"
android:layout_height="300dp" >
</ImageSwitcher>
<LinearLayout
android:id="@+id/linear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@id/imageSwitcher1"
android:layout_centerHorizontal="true"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="leftOnClick"
android:text="右"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="rightOnClick"
android:text="左"
/>
</LinearLayout>
<Gallery
android:id="@+id/gallery1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
/>
</RelativeLayout>