我在我的应用程序中使用view pager，viewpager工作正常但我想添加viewpagerindicator，以下是我的代码片段和xi的ui设计可以任何人告诉我什么是问题吗？在此先感谢..... ........
public class Test_Pager extends Activity{
private String strtd;
String[] imgStr;
ImageView imageView;
ArrayList<String> userImgArrayList;
String[] myURLs;
/*country list*/
JSONArray country_list=null;
private ServiceHandler sh;
private String jsonStr;
private JSONObject jsonObj;
private String user_img;
private String user_pro;
private static String PROFILE_VIEW_URL = "";
private static final String USER_IMG="product_images";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test_pagerss);
userImgArrayList = getIntent().getStringArrayListExtra("user_images");
ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
ImageAdapter adapter = new ImageAdapter(this);
viewPager.setAdapter(adapter);
// TitlePageIndicator titleIndicator = (TitlePageIndicator) findViewById(R.id.titles);
// titleIndicator.setViewPager(viewPager);
leftss=(ImageView)findViewById(R.id.lefticonsss);
rightss=(ImageView)findViewById(R.id.righticonsss);
imageView = (ImageView) findViewById(R.id.full_image_view);
PROFILE_VIEW_URL="";
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
sh = new ServiceHandler();
// Making a request to url and getting response
jsonStr = sh.makeServiceCall(PROFILE_VIEW_URL, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
try {
jsonObj = new JSONObject(jsonStr);
/*proview_business = jsonObj.getString(PROFILE_VIEW_BUSINESS);
proview_subcat = jsonObj.getString(PROFILE_VIEW_SUB_CATAGORY);
proview_mainpro = jsonObj.getString(PROFILE_VIEW_MAINPRODUCTS);
proview_expr = jsonObj.getString(PROFILE_VIEW_EXPERIENCE);
proview_cmpname = jsonObj.getString(PROFILE_VIEW_COMPANYNAME);
proview_website = jsonObj.getString(PROFILE_VIEW_WEBSITE);*/
// user_img=jsonObj.getString(USER_IMG);
user_img=jsonObj.getString(USER_IMG);
user_img = "";
userImgArrayList = new ArrayList<String>();//declare userImgArrayList globally like ArrayList<String> userImgArrayList;
JSONArray picarray = jsonObj.getJSONArray(USER_IMG);
for(int i=0;i< picarray.length();i++)
{
user_img = picarray.getString(i);
userImgArrayList.add(user_img);
Log.d("mylog", "curent pro pic = " + user_img);
}
} catch (JSONException e) {
e.printStackTrace();
}
leftss.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
viewPager.setCurrentItem(+1,true);
}
});
}
public class ImageAdapter extends PagerAdapter {
Context context;
ImageAdapter(Context context)
{
this.context=context;
}
@Override
public int getCount() {
return USER_IMG.length();
}
@Override
public void destroyItem(View container, int position, Object object) {
((ViewPager) container).removeView((View) object);
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((ImageView) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
ImageView imageView = new ImageView(context);
int padding = context.getResources().getDimensionPixelSize(
R.dimen.activity_horizontal_margin);
imageView.setPadding(padding, padding, padding, padding);
//imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
//Picasso.with(context).load(userImgArrayList.get(position)).into(imageView);
Picasso.with(context).load(userImgArrayList.get(position)).resize(200, 200) .into(imageView);
/*for(int i=0; i<myURLs.length;i++)
{
try {
url = new URL(myURLs[i]);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
imageView.setImageBitmap(bmp);
}
*/
// imageView.setImageURI(Uri.parse(imgStr[position]));
((ViewPager) container).addView(imageView, 0);
return imageView;
}
}
}
Myxml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="@android:color/black"
android:gravity="center_horizontal"
>
<ImageView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/arrow"
android:rotation="180"
android:id="@+id/lefticonsss"
/>
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="150dp"
android:layout_height="150dp"
/>
<ImageView android:id="@+id/full_image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/arrow"
android:id="@+id/righticonsss"
/>
</LinearLayout>
答案 0 :(得分：0)
我使用此库https://github.com/astuetz/PagerSlidingTabStrip
摘要：
1.在您的onCreate
// Initialize the ViewPager and set an adapter
ViewPager pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(new TestAdapter(getSupportFragmentManager()));
// Bind the tabs to the ViewPager
PagerSlidingTabStrip tabs = (PagerSlidingTabStrip) findViewById(R.id.tabs);
tabs.setViewPager(pager);
（可选）如果您对OnPageChangeListener使用ViewPager，则应在Widget而不是ViewPager直接设置{。}}。
tabs.setOnPageChangeListener(mPageChangeListener);
答案 1 :(得分：0)
您好我看到您尝试使用TitlePageIndicator的更新代码。我假设你确实实现了com.jakewharton.android.viewpagerindicator.TitlePageIndicator
我已更新您的代码，请参阅下面修改后的代码。
在您PagerAdapter确保您使用override the getTitle(int position)方法时，您必须向页面适配器提供正确的数据源。
getTitle（int position）从给定的数据源中查找标题文本。
public class ImageAdapter extends PagerAdapter implements TitleProvider
{
private final Context context;
public ImageAdapter( Context context )
{
this.context = context;
}
@Override
public String getTitle( int position )
{
return userImgArrayList.get(position);
}
@Override
public int getCount()
{
return userImgArrayList.size();
}
@Override
public Object instantiateItem( View pager, final int position )
{
ImageView imageView = new ImageView(context);
int padding = context.getResources().getDimensionPixelSize(R.dimen.activity_horizontal_margin);
imageView.setPadding(padding, padding, padding, padding);
Picasso.with(context).load(userImgArrayList.get(position)).resize(200, 200) .into(imageView);
((ViewPager) container).addView(imageView, 0);
return imageView;
}
@Override
public void destroyItem( View pager, int position, Object view )
{
( (ViewPager) pager ).removeView( (ListView) view );
}
@Override
public boolean isViewFromObject( View view, Object object )
{
return view == ((ImageView) object);
}
}
如果您有任何进一步的询问，请告诉我。谢谢
答案 2 :(得分：0)
ViewPagerIndicator是一个cusomized View，与其他观点没有区别。所以你可以像使用任何其他View一样使用它。当然，ViewPagerIndicator有自己的一些自定义属性，如attrs。以你的片段为例，我认为你做得很好。
<LinearLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="@+id/lnr11"
android:orientation="vertical"
>
<com.viewpagerindicator.TitlePageIndicator
android:id="@+id/titles"
android:layout_height="30dp"
android:layout_width="match_parent" />
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="150dp"
android:layout_height="150dp"
/>
<ImageView android:id="@+id/full_image_view"
android:layout_width="wrap_content"
android:src="@drawable/ic_launcher"
android:layout_height="wrap_content"/></LinearLayout>