编辑2:示例代码已被推送到TouchImageView的master分支。这里是示例活动的链接和ExtendedViewPager的链接。
编辑:添加了使示例链接适应TouchImageView的代码。注意:您将需要最新的代码,该代码当前位于dev分支中。将来,它将包含在v1.2.0中。您知道,如果TouchImageView覆盖canScrollHorizontally,则您拥有最新的代码。
第1步:扩展ViewPager并覆盖canScroll以调用canScrollHorizontallyFroyo。
public class ExtendedViewPager extends ViewPager {public ExtendedViewPager(Context context) { super(context);}public ExtendedViewPager(Context context, AttributeSet attrs) { super(context, attrs);}@Overrideprotected boolean canScroll(View v, boolean checkV, int dx, int x, int y) { if (v instanceof TouchImageView) { return ((TouchImageView) v).canScrollHorizontallyFroyo(-dx); } else { return super.canScroll(v, checkV, dx, x, y); }}}步骤2:通过添加canScrollHorizontallyFroyo来修改TouchImageView:
public boolean canScrollHorizontallyFroyo(int direction) { return canScrollHorizontally(direction);}步骤3:您的活动
public class TouchImageViewActivity extends Activity {@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ExtendedViewPager mViewPager = (ExtendedViewPager) findViewById(R.id.view_pager); setContentView(mViewPager); mViewPager.setAdapter(new TouchImageAdapter()); } static class TouchImageAdapter extends PagerAdapter { private static int[] images = { R.drawable.img1, R.drawable.img2, R.drawable.img3 }; @Override public int getCount() { return images.length; } @Override public View instantiateItem(ViewGroup container, int position) { TouchImageView img = new TouchImageView(container.getContext()); img.setImageResource(images[position]); container.addView(img, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); return img; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } }}步骤4: main.xml
<com.example.touch.ExtendedViewPager xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/view_pager" android:layout_width="match_parent" android:layout_height="match_parent" />
TouchImageView实际上是我的项目。我目前在dev分支中有一个与ViewPagers集成的修复程序,该修复程序将在以后的发行版中发布。不幸的是,此修复仅适用于API 14及更高版本,因为honeycomb和更早版本不调用。如果需要支持较旧的API,则需要在ViewPager中实现解决方法。这是一个例子。canScrollHorizontally



