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POCustom listview crashes in custom alertdialog
 

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  1. POCustom listview crashes in custom alertdialog
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    <p>what's my problem? I'm trying to create a custom adapter in the dialogue. I can not understand what is the cause of the error.</p> <p><strong>create dialog:</strong></p> <pre><code> protected Dialog onCreateDialog(int id) { AlertDialog.Builder adb = new AlertDialog.Builder(this); adb.setTitle("Choose contact"); view = (LinearLayout) getLayoutInflater().inflate(R.layout.dialog, null); adb.setView(view); deditText = (EditText) view.findViewById(R.id.deditText); deditText.addTextChangedListener(this); dlvNames = (ListView) view.findViewById(R.id.dlvCheck); Cursor cursor = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, new String[] { Phone._ID, Phone.DISPLAY_NAME, Phone.NUMBER }, null, null, null); startManagingCursor(cursor); while (cursor.moveToNext()) { ID=i; CID=Long.valueOf(cursor.getString(0)); NAME=cursor.getString(1); PHONE=cursor.getString(2); Contact_List.add(new Contact(ID,CID,NAME,PHONE)); i++; } contactAdapter = new ContactAdapter(this,Contact_List ); //crashes here dlvNames.setAdapter(contactAdapter); dialog = adb.create(); return dialog; } </code></pre> <p><strong>create custom adapter:</strong></p> <pre><code> public class ContactAdapter extends ArrayAdapter&lt;Contact&gt; { private final Activity context; ArrayList&lt;Contact&gt; Contact_List; LayoutInflater lInflater; static class ViewHolder { public TextView tvName; public TextView tvPhone; } public ContactAdapter(Activity context, ArrayList&lt;Contact&gt; Contact_List) { super(context, R.layout.item, Contact_List); this.context = context; this.Contact_List = Contact_List; } public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; View view = convertView; if (view == null) { LayoutInflater inflater = context.getLayoutInflater(); //view = lInflater.inflate(R.layout.item, parent, false); view = inflater.inflate(R.layout.item, null, true); holder = new ViewHolder(); holder.tvName = (TextView) view.findViewById(R.id.tvName); holder.tvPhone = (TextView) view.findViewById(R.id.tvPhone); convertView.setTag(holder); } else { holder = (ViewHolder) view.getTag(); } Contact c = getContact(position); holder.tvName.setText(c.name); holder.tvPhone.setText(c.phone); return view; } Contact getContact(int position) { return ((Contact) getItem(position)); } } </code></pre> <p><strong>LogCat:</strong></p> <pre><code> 01-17 06:40:31.801: E/AndroidRuntime(1263): FATAL EXCEPTION: main 01-17 06:40:31.801: E/AndroidRuntime(1263): java.lang.NullPointerException 01-17 06:40:31.801: E/AndroidRuntime(1263): at com.example.testreadcontacts.ContactAdapter.getView(ContactAdapter.java:50) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.AbsListView.obtainView(AbsListView.java:2271) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.ListView.measureHeightOfChildren(ListView.java:1244) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.ListView.onMeasure(ListView.java:1156) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1390) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.LinearLayout.measureVertical(LinearLayout.java:681) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1390) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.LinearLayout.measureVertical(LinearLayout.java:681) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 01-17 06:40:31.801: E/AndroidRuntime(1263): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2148) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.View.measure(View.java:15172) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1850) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1102) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1275) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4214) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.Choreographer.doCallbacks(Choreographer.java:555) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.Choreographer.doFrame(Choreographer.java:525) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.os.Handler.handleCallback(Handler.java:615) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.os.Handler.dispatchMessage(Handler.java:92) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.os.Looper.loop(Looper.java:137) 01-17 06:40:31.801: E/AndroidRuntime(1263): at android.app.ActivityThread.main(ActivityThread.java:4745) 01-17 06:40:31.801: E/AndroidRuntime(1263): at java.lang.reflect.Method.invokeNative(Native Method) 01-17 06:40:31.801: E/AndroidRuntime(1263): at java.lang.reflect.Method.invoke(Method.java:511) 01-17 06:40:31.801: E/AndroidRuntime(1263): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 01-17 06:40:31.801: E/AndroidRuntime(1263): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 01-17 06:40:31.801: E/AndroidRuntime(1263): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    1. USakjoshi
    1. USOlia Bric
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    1. COWhat is ContactAdapter.java:50?
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      1. POCustom listview crashes in custom alertdialog
      1. USRaghav Sood
    2. COits custom adapter
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    3. COI meant what's on line 50 of that file?
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      1. USRaghav Sood
 

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