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POi have create list view with file name with size but after then set on click list view they throw null pointer exception
primarykey
Id
20113833
data
AcceptedAnswerId
20114072
AnswerCount
2
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2013-11-21T06:18:07.650
FavoriteCount
0
LastActivityDate
2013-11-21T06:55:54.317
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0
OwnerUserId
3003491
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PostTypeId
1
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0
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127
LastEditorDisplayName
text
Body
before to add file size its properly work but after then add this concept its showing error onclicklistitem below i give you snippet of code plz help me check my code and inform me. list_file.xml******************************** <pre><code><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <ListView android:id="@+id/mylist" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:background="#aa0000" android:drawSelectorOnTop="false" /> </LinearLayout> </code></pre> code***************************** <pre><code>protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); myList = new ArrayList<String>(); myDB = this.openOrCreateDatabase("Recycle", MODE_PRIVATE, null); String root_sd = Environment.getExternalStorageDirectory().toString(); file = new File( root_sd + "/recycle/" ) ; File list[] = file.listFiles(); for( int i=0; i< list.length; i++) { myList.add( list[i].getName() + "\n" + readableFileSize(list[i].length())); } setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, myList )); setContentView(R.layout.main); mFilePathTextView = (TextView)findViewById(R.id.file_path_text_view); mStartActivityButton = (Button)findViewById(R.id.start_file_picker_button); mStartActivityButton.setOnClickListener(this); } protected void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); final File temp_file = new File( file, myList.get( position ) ); AlertDialog alertbox = new AlertDialog.Builder(this) .setTitle("File Detail") .setMessage("File Name:"+temp_file) .setPositiveButton("Delete", new DialogInterface.OnClickListener() { // do something when the button is clicked public void onClick(DialogInterface arg0, int arg1) { DeleteRecursive(temp_file); refresh(); //mylist.invalidateViews(); //adapter.notifyDataSetChanged(); } }) </code></pre>
Tags
<android><file-io><android-listview>
Title
i have create list view with file name with size but after then set on click list view they throw null pointer exception
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PostAcceptedAnswerId
1. PO
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 PTAnswer
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1. This table or related slice is empty.
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1. PTQuestion
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1. This table or related slice is empty.
UserOwnerUserId
1. USAbhishek Maheshwari
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PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. PO
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2. PO
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1. This table or related slice is empty.
CommentsPostId
1. COWhere did you **initilize** the `listview` and where did you **setadapter** for the `listview`. Post the **full code** and **logcat** error.
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 PostPostId
 POi have create list view with file name with size but after then set on click list view they throw null pointer exception
 UserUserId
 USHariharan
2. CO@user3003491 see updated answer..
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 PostPostId
 POi have create list view with file name with size but after then set on click list view they throw null pointer exception
 UserUserId
 USAmulya Khare

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