Databases
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    <pre><code>public class ContactlistActivity extends Activity { String name; File file = null; String[] names = { ContactsContract.CommonDataKinds.Phone._ID, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); try { File folder = new File(Environment.getExternalStorageDirectory()+ "/Application"); boolean var = false; if (!folder.exists()) var = folder.mkdir(); System.out.println("" + var); String filename = folder.toString() + "/Contact.csv"; FileWriter fw = new FileWriter(filename); fw.append("Name"); fw.append(','); fw.append("Number"); fw.append(','); fw.append('\n'); Cursor cur = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI,names,null,null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+ " ASC"); if (cur.getCount() &gt; 0) { while (cur.moveToNext()) { String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID)); name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)); String phoneno = cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); String dataString = null; dataString = "\"" + name + "\",\"" + phoneno + "\""; fw.append("" + name); fw.append(','); fw.append("" + phoneno); fw.append(','); fw.append('\n'); } cur.close(); fw.close(); } } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } } </code></pre>
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    1. This table or related slice is empty.
    1. POproblem on making .csv of contact list:android
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    1. USSergey Glotov
    1. USKeTaN
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COOne note: if cursor is empty (`getCount() == 0`), fileWriter `fw` will not be closed.
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      1. USSergey Glotov
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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