xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/black">
<android.support.v4.view.ViewPager
android:id="@+id/picViewPager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
java类：
public class ActShowBigPicture extends BaseActivity implements ZoomImageView.onImageTouchedListener {
/** 图片url集合 intent key */
public static final String INTENT_PICURLS = "picUrls";
/** 显示下标 intent key */
public static final String INTENT_SHOW_POS = "showPos";
private List<String> picUrls; // 图片URL集合
private int showPos; // 显示下标
private int oldPosition = 0;
private ViewPager picViewPager;
private List<View> zoomImageViewContainers;
private List<ZoomImageView> zoomImageViews;
private DisplayImageOptions mPicOptions;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.act_show_big_picture);
mBar.setVisibility(View.GONE);
dismissLoadingView();
// 获取传递过来的Intent对象
Intent intent = getIntent();
picUrls = intent.getStringArrayListExtra(INTENT_PICURLS);
showPos = intent.getIntExtra(INTENT_SHOW_POS, 0);
if (null == picUrls || picUrls.size() <= 0) {
finish();
return ;
}
mPicOptions = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.def_banner_img)
.showImageOnFail(R.drawable.def_banner_img)
.showImageForEmptyUri(R.drawable.def_banner_img)
.cacheOnDisk(true)
.cacheInMemory(false)
.displayer(new FadeInBitmapDisplayer(200, true, true, false)) // 显示动画
.build();
// 初始化View
picViewPager = (ViewPager)findViewById(R.id.picViewPager);
// 设置事件
// findViewById(R.id.layout_back).setOnClickListener(this);
zoomImageViews = new ArrayList<>();
zoomImageViewContainers = new ArrayList<>();
for (int i=0; i<picUrls.size(); i++) {
View zoomImageViewContainer = getLayoutInflater().inflate(R.layout.item_big_picture, null);
ZoomImageView zommImageView = (ZoomImageView)zoomImageViewContainer.findViewById(R.id.zommImageView);
zommImageView.setOnImageTouchedListener(this);
zommImageView.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
ZoomImageView curZoomImageView = (ZoomImageView)v;
Bitmap tempImageBitmap = curZoomImageView.getImageBitmap();
if (null == tempImageBitmap) {
return false;
}
int curW = tempImageBitmap.getWidth();
int curH = tempImageBitmap.getWidth();
Matrix m = curZoomImageView.getImageViewMatrix();
RectF rect = new RectF(0, 0, curW, curH);
m.mapRect(rect);
// 图片超出屏幕范围后移动
// Log.i("wg", "rect.right= " + rect.right + " _ rect.left = " + rect.left);
if (!(rect.right > curZoomImageView.getWidth() + 0.1 && rect.left < -0.1)) {
picViewPager.requestDisallowInterceptTouchEvent(false);
} else {
picViewPager.requestDisallowInterceptTouchEvent(true);
}
return false;
}
});
zoomImageViewContainers.add(zoomImageViewContainer);
zoomImageViews.add(zommImageView);
}
// 设置图片间的间距
// final float scale = getResources().getDisplayMetrics().density;
// int pagerMarginPixels = (int) (PAGER_MARGIN_DP * scale + 0.5f);
// picViewPager.setPageMargin(pagerMarginPixels);
// picViewPager.setPageMarginDrawable(new ColorDrawable(Color.BLACK));
// 设置适配器
picViewPager.setAdapter(new PagerAdapter() {
@Override
public void destroyItem(View arg0, int arg1, Object arg2) {
((ViewPager)arg0).removeView(zoomImageViewContainers.get(arg1));
}
@Override
public int getCount() {
return zoomImageViewContainers.size();
}
@Override
public Object instantiateItem(View arg0, int arg1) {
View v = zoomImageViewContainers.get(arg1);
((ViewPager) arg0).addView(v, 0);
return v;
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == (arg1);
}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1) {
}
@Override
public Parcelable saveState() {
return null;
}
@Override
public void startUpdate(View arg0) {
}
});
picViewPager.setOnPageChangeListener(new SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
// 恢复原图最小化
ZoomImageView oldImageViewTouch = zoomImageViews.get(oldPosition);
if (null != oldImageViewTouch && null != oldImageViewTouch.getImageBitmap() && !oldImageViewTouch.getImageBitmap().isRecycled()) {
oldImageViewTouch.zoomTo(oldImageViewTouch.zoomDefault());
}
ZoomImageView curImageViewTouch = zoomImageViews.get(position);
Bitmap curImageBitmap = curImageViewTouch.getImageBitmap();
// 当图片Bitmap为空或者已经被回收的时候才去加载
if (null == curImageBitmap || curImageBitmap.isRecycled()) {
loadImageViewBitmap(picUrls.get(position), curImageViewTouch, null);
}
oldPosition = position;
}
});
picViewPager.setCurrentItem(showPos, false);
if (showPos == 0) {
// 显示第一张图片
// 显示Loading
ImageLoader.getInstance().displayImage(picUrls.get(0), zoomImageViews.get(0), mPicOptions, new SimpleImageLoadingListener(){
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
super.onLoadingComplete(imageUri, view, loadedImage);
// ((FrameLayout)zoomImageViews.get(0).getParent()).findViewById(R.id.pagerLoad).setVisibility(View.GONE);
}
@Override
public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
super.onLoadingFailed(imageUri, view, failReason);
// 隐藏Loading
// ((FrameLayout)zoomImageViews.get(0).getParent()).findViewById(R.id.pagerLoad).setVisibility(View.GONE);
// 显示loading错误View
// ((FrameLayout)zoomImageViews.get(0).getParent()).findViewById(R.id.loaddataErrRL).setVisibility(View.VISIBLE);
}
});
}
}
private void loadImageViewBitmap(final String picUrl, final ImageView iv, final View parentView) {
if (null != parentView) {
// 显示Loading
// parentView.findViewById(R.id.pagerLoad).setVisibility(View.VISIBLE);
}
ImageLoader.getInstance().displayImage(picUrl, iv, mPicOptions, new SimpleImageLoadingListener() {
@Override
public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
super.onLoadingFailed(imageUri, view, failReason);
// 获取父View
// final FrameLayout parentView = (FrameLayout)iv.getParent();
// 隐藏Loading
// parentView.findViewById(R.id.pagerLoad).setVisibility(View.GONE);
// 显示loading错误View
// parentView.findViewById(R.id.loaddataErrRL).setVisibility(View.VISIBLE);
}
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
super.onLoadingComplete(imageUri, view, loadedImage);
// 获取父View
// final FrameLayout parentView = (FrameLayout)iv.getParent();
if (null == loadedImage) {
// 显示loading错误View
// parentView.findViewById(R.id.loaddataErrRL).setVisibility(View.VISIBLE);
}
// 隐藏Loading
// parentView.findViewById(R.id.pagerLoad).setVisibility(View.GONE);
}
});
}
@Override
public void onImageTouched() {
finish();
}
public static void showPic(Context context, String path) {
if (TextUtils.isEmpty(path)) return ;
ArrayList<String> picurls = new ArrayList<>();
picurls.add(path);
showPic(context, picurls);
}
public static void showPic(Context context, ArrayList<String> picurls) {
showPic(context, picurls, 0);
}
public static void showPic(Context context, ArrayList<String> picurls, int postion) {
if (null == picurls || picurls.size() == 0) return ;
Intent intent = new Intent(context, ActShowBigPicture.class);
intent.putStringArrayListExtra(ActShowBigPicture.INTENT_PICURLS, picurls);
if (postion != 0) {
intent.putExtra(INTENT_SHOW_POS, postion);
}
context.startActivity(intent);
}
@Override
protected boolean isNotSwipe() {
return true;
}
}
ZoomImageView类参考前一篇随笔