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POAndroid reload ListView data from SQLite
 

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  1. POAndroid reload ListView data from SQLite
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    <p>I had a ListView that loads data from the SQLite database and onClickListener for each list that opens up to a new activity. My problem now is that when I press "Back" to go back to the previous activity with the ListView, it doesn't show. </p> <p>How do I reload the list from database again? How do I go about it? </p> <p>Does it have anything to do with notifyDataSetChanged()? </p> <p>Please help.</p> <p>Thank you.</p> <p><strong>EDITED:</strong></p> <p>Below are my codes to load the ListView under onCreate():</p> <pre><code> ListView listContent = (ListView) findViewById(R.id.contentlist); mySQLiteAdapter = new SQLiteAdapter(this); mySQLiteAdapter.openToRead(); Cursor cursor = mySQLiteAdapter.queueAll(); startManagingCursor(cursor); String[] from = new String[] { SQLiteAdapter.KEY_CONTENT }; int[] to = new int[] { R.id.text }; SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(this, R.layout.listrow, cursor, from, to); listContent.setAdapter(cursorAdapter); mySQLiteAdapter.close(); //Onclick ListView setlistener listContent.setTextFilterEnabled(true); listContent.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { Intent summaryIntent = new Intent(DocumentListActivity.this, ViewDocumentActivity.class); listTopic = ((TextView) view).getText().toString(); summaryIntent.putExtra("SummTopic", listTopic); startActivity(summaryIntent); } }); </code></pre> <p>So what to add in the Resume()?</p>
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    1. USmellissa
    1. USmellissa
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    1. COYou should add your load data code to onStart() or onResume(). The rest is pure guessing as you don't provide code...
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      1. POAndroid reload ListView data from SQLite
      1. USWarrenFaith
    2. COCan you post your code? The listview have to show when you pressed back, thats a android lifecycle issue. Load from database in onResume() is not required, when nothing is changed content of database not changed. By a database with much entries it will be impair performance.
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      1. USzennon
    3. CO@WarrenFaith: See my edited part for codes.
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      1. USmellissa
 

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