我目前ImageSwitcher在我的应用程序中实现了一个，它可以在一组图片中滑动。现在我想ProgressBar在图片下方显示我们在集合中的哪个位置，以便用户了解还剩下多少图片。
这可能吗？我可以就如何实现这一点提供一些建议吗？
图片：
进展 [--|--------]
我的ImageSwticher：
package com.example.cfaslides;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationUtils;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ViewSwitcher.ViewFactory;
import android.util.Log;
import android.view.MotionEvent;
import android.widget.ProgressBar;
import android.widget.ViewSwitcher;
import android.widget.Gallery;
import android.widget.Gallery.LayoutParams;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.view.Window;
import android.content.Context;
public class l2_AltInvestActivity extends Activity implements ViewFactory {
ImageSwitcher imageSwitcher;
Integer[] imageList = {
R.drawable.av_01,
R.drawable.av_02,
R.drawable.av_03,
R.drawable.av_04,
R.drawable.av_05
};
int curIndex=0;
int maxIndex = 4; //# imageList -1
int downX, upX;
private Animation mIn1, mOut1, mIn2, mOut2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.slider);
final ProgressBar mProgressBar = (ProgressBar) findViewById(R.id.progressB);
mProgressBar.setProgress(0);
mProgressBar.setMax(maxIndex);
mProgressBar.setVisibility(View.VISIBLE);
mIn1 = AnimationUtils.loadAnimation(l2_AltInvestActivity.this,android.R.anim.slide_in_left);
mOut1 = AnimationUtils.loadAnimation(l2_AltInvestActivity.this,android.R.anim.slide_out_right);
mIn2 = AnimationUtils.loadAnimation(l2_AltInvestActivity.this,R.anim.slide_in_right);
mOut2 = AnimationUtils.loadAnimation(l2_AltInvestActivity.this,R.anim.slide_out_left);
AnimationListener mAnimListener = new AnimationListener() {
public void onAnimationEnd(Animation animation) {
// the in animation has ended so update the ProgressBar with the new
// progress
mProgressBar.setProgress(curIndex); // I don't know your progress?!?
}
@Override
public void onAnimationStart(Animation animation) {
// TODO Auto-generated method stub
}
@Override
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub
}
// rest of the callbacks
};
//set this listener for the both of the in animations
mIn1.setAnimationListener(mAnimListener);
mIn2.setAnimationListener(mAnimListener);
// rest of the onCreate method
imageSwitcher = (ImageSwitcher) findViewById(R.id.switcher);
imageSwitcher.setFactory(this);
imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_in));
imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_out));
imageSwitcher.setImageResource(imageList[curIndex]);
imageSwitcher.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
downX = (int) event.getX();
Log.i("event.getX()", " downX " + downX);
return true;
}
else if (event.getAction() == MotionEvent.ACTION_UP) {
upX = (int) event.getX();
Log.i("event.getX()", " upX " + downX);
if (upX - downX > 100) {
imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(l2_AltInvestActivity.this,android.R.anim.slide_in_left));
imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(l2_AltInvestActivity.this,android.R.anim.slide_out_right));
//curIndex current image index in array viewed by user
curIndex--;
if (curIndex < 0) {
curIndex = maxIndex; //maximum
}
//imageList :-image list array
imageSwitcher.setImageResource(imageList[curIndex]);
//GalleryActivity.this.setTitle(curIndex);
}
else if (downX -upX > -100) {
curIndex++;
if (curIndex > maxIndex) {
curIndex = 0;
}
imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(l2_AltInvestActivity.this,R.anim.slide_in_right));
imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(l2_AltInvestActivity.this,R.anim.slide_out_left));
imageSwitcher.setImageResource(imageList[curIndex]);
//GalleryActivity.this.setTitle(curIndex);
}
return true;
}
return false;
}
});
} //END onCreate
@Override
public View makeView() {
ImageView i = new ImageView(this);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
i.setBackgroundColor(0xFF000000);
return i;
} //END makeView
} // END Class
滑块：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="@+id/widget32"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<ProgressBar
android:id="@+id/progressB"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ImageSwitcher android:id="@+id/switcher"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
>
</ImageSwitcher>
</RelativeLayout>