Hi I am using viewpager to show a image slide. And I am loading the images and text from the network using volley. I am getting the error like this.
java.lang.ClassCastException: android.support.v4.view.ViewPager cannot be cast to android.widget.LinearLayout
at com.truetech.lola.adapter.HomeCentralPagerAdapter.destroyItem(HomeCentralPagerAdapter.java:70)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1111)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1025)
And I need to show the viewpager in it. But its often showing some error. Kindly look at my code and tell me where I am doing the mistake.
And My Adapter is
public class HomeCentralPagerAdapter extends PagerAdapter {
private Context mContext;
private LayoutInflater mLayoutInflater;
private List<HomeCentralPagerContent> mHomeCentralPagerContents;
public HomeCentralPagerAdapter(Context mContext) {
this.mContext = mContext;
mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public HomeCentralPagerAdapter(Context mContext, List<HomeCentralPagerContent> mHomeCentralPagerContents) {
this.mContext = mContext;
this.mHomeCentralPagerContents = mHomeCentralPagerContents;
}
@Override
public int getCount() {
return mHomeCentralPagerContents.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = mLayoutInflater.inflate(R.layout.main_activity_pager_layout, container, false);
//ImageView homeCentralPagerIMV = (ImageView) itemView.findViewById(R.id.homeCentralImage);
SimpleDraweeView homeCentralDraweeView = (SimpleDraweeView) itemView.findViewById(R.id.homeCentralImage);
TextView homeCentralPointsTV = (TextView) itemView.findViewById(R.id.homeCentralPoints);
TextView homeCentralTitleTV = (TextView) itemView.findViewById(R.id.homeCentralPagerTitle);
HomeCentralPagerContent m = mHomeCentralPagerContents.get(position);
Uri imageUri = Uri.parse(m.getHomeCentralImage());
homeCentralDraweeView.setImageURI(imageUri);
homeCentralPointsTV.setText(m.getHomeCentralPoints());
((ViewPager)container).addView(itemView);
return container;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager)container).removeView((LinearLayout) object);
}
}
And My Activity file is
public class MainActivity extends Activity {
private static final String TAG = "MainActivity";
private PrefManager pref;
private HomeCentralPagerAdapter mHomeCentralPagerAdapter;
private List<HomeCentralPagerContent> pagerContentList = new ArrayList<HomeCentralPagerContent>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pref = new PrefManager(getApplicationContext());
ViewPager mViewPager = (ViewPager) findViewById(R.id.homeCentralViewPager);
mHomeCentralPagerAdapter = new HomeCentralPagerAdapter(this, pagerContentList);
getHomeCentralContents();
mViewPager.setAdapter(mHomeCentralPagerAdapter);
}
private void getHomeCentralContents() {
String URL = ConstantValues.GetHomeCentralContent + pref.getUserId();
Log.d(TAG, "Home Central URL: " + URL);
new NetWorkRequest(MainActivity.this).volleyGetJsonObjectData(URL, new VolleyResponseListerner() {
@Override
public void onResponse(JSONObject response) throws JSONException {
VolleyLog.d(TAG, "Home Central OnResponse: " + response);
String statusStr = response.getString("Status");
Log.d(TAG, "Status: " + statusStr);
if (statusStr.equalsIgnoreCase("Success")) {
Iterator iterator = response.keys();
while (iterator.hasNext()) {
String key = (String) iterator.next();
Log.d(TAG, "Key Value: " + key);
if (response.get(key) instanceof JSONArray) {
Log.d(TAG, "JSON Array Key: " + key);
try {
if (!key.equalsIgnoreCase("Point Details")) {
JSONArray loopedArray = response.getJSONArray(key);
JSONObject jsonObject;
for (int i = 0; i < loopedArray.length(); i++) {
jsonObject = loopedArray.getJSONObject(i);
HomeCentralPagerContent homeCentralPagerContent = new HomeCentralPagerContent();
homeCentralPagerContent.setHomeCentralPoints(jsonObject.getString(key + "_Points"));
homeCentralPagerContent.setHomeCentralImage(jsonObject.getString("ImagePath"));
pagerContentList.add(homeCentralPagerContent);
}
} else {
Log.d(TAG, "Exception Due to Points Details Array");
}
} catch (JSONException e) {
Log.e(TAG, "JSON Array Key Exception: " + e);
}
}
}
mHomeCentralPagerAdapter.notifyDataSetChanged();
Log.d(TAG, "Total Content List: " + pagerContentList);
}
}
@Override
public void onError(String message, String title) {
VolleyLog.e(TAG, "Home Central OnErrorResponse: " + message);
}
});
}
}
And My XML File is
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:fresco="http://schemas.android.com/apk/res-auto"
android:id="@+id/mainPagerParentLay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center">
<com.facebook.drawee.view.SimpleDraweeView
android:id="@+id/homeCentralImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
fresco:placeholderImage="@drawable/logo_login" />
<RelativeLayout
android:id="@+id/homeCentralPointsAndTitleLay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_marginLeft="33dp"
android:layout_marginRight="33dp"
android:layout_marginTop="397dp">
<TextView
android:id="@+id/homeCentralPoints"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="@drawable/round_counter_bg"
android:gravity="center"
android:text=""
android:textColor="#fff"
android:textSize="30sp" />
<TextView
android:id="@+id/homeCentralPagerTitle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/homeCentralPoints"
android:layout_centerVertical="true"
android:gravity="center"
android:textColor="@color/dark_grey"
android:textSize="14sp" />
</RelativeLayout>
</RelativeLayout>
