你可以做它没有任何第三方库
最终结果:
1)使用帧布局作为Viewpager容器中,然后在它的底部添加的LinearLayout。
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax">
<android.support.v4.view.ViewPager
android:id="@+id/product_images_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="20dp"
android:layout_gravity="bottom|center_horizontal"
android:layout_margin="10dp">
<LinearLayout
android:id="@+id/indicator_root"
android:layout_width="20dp"
android:layout_height="match_parent"
android:layout_gravity="bottom|center_horizontal"
android:gravity="center_horizontal"
android:orientation="horizontal">
</LinearLayout>
</HorizontalScrollView>
</FrameLayout>
2)线性布局
for (int indicatorCount = 0; indicatorCount < productFromShoppingList.getProductImages().size();
indicatorCount++) {
ImageView imageIndicator =
new ImageView(getActivity());
imageIndicator.setAdjustViewBounds(true);
imageIndicator.setScaleType(ImageView.ScaleType.FIT_XY);
imageIndicator.setLayoutParams(imageParam);
indicatorContainer.addView(imageIndicator);
indicators.add(imageIndicator);
imageIndicator.setBackgroundResource(R.drawable.indicator_unselected);
}
4)在0位置
indicators.get(0).setBackgroundResource(R.drawable.indicator_unselected);
初始化指示器定义指标
//define globaly
private LinearLayout.LayoutParams imageParam;
//init params
int margin = Utils.pxFromDp(getActivity(), 5);
int width = Utils.pxFromDp(getActivity(), 8);
imageParam = new LinearLayout.LayoutParams(width, width);
imageParam.setMargins(margin, margin, margin, margin);
3)添加指示器大小和余量5)在vi上更新指标EW寻呼机页变化
carousalViewPager.setAdapter(new slidingPagerAdapter(getActivity(),
productFromShoppingList.getProductImages()));
carousalViewPager
.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position,
float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
currentPageIndex = position;
updateIndicators(currentPageIndex);
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
private void updateIndicators(int selectedPostion) {
for (int indicatorPosition = 0; indicatorPosition < indicators.size(); indicatorPosition++) {
indicators.get(indicatorPosition).setBackgroundResource(indicatorPosition == selectedPostion ? R.drawable.indicator_selected
: R.drawable.indicator_unselected);
}
}
最后但并非最不重要添加此2绘制的指标
indicator_unselected.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<stroke
android:width="1dp"
android:color="@color/white" />
</shape>
indicator_selected.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<corners android:radius="100dp" />
<solid android:color="@android:color/white" />
</shape>
作品perfec TLY! 非常感谢你帮助我! :) – carstenbaumhoegger 2014-09-06 22:19:33
我很高兴我能帮助你! – 2014-09-06 22:24:52
是的,它工作正常,其余的答案不工作,或者不在新的android工作室。 +1谢谢 – 2014-10-16 21:00:42