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Cleanup one of the ListView sample demos.

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This commit is contained in:
Romain Guy
2009-12-10 15:19:03 -08:00
parent 2c0f89aaf6
commit f4ff28edda
2 changed files with 44 additions and 24 deletions
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64
samples/ApiDemos/src/com/example/android/apis/view/List7.java
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@@ -16,15 +16,12 @@
package com.example.android.apis.view; package com.example.android.apis.view;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R; import com.example.android.apis.R;
import android.app.ListActivity; import android.app.ListActivity;
import android.database.Cursor; import android.database.Cursor;
import android.provider.Contacts.People;
import android.os.Bundle; import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View; import android.view.View;
import android.widget.AdapterView; import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener; import android.widget.AdapterView.OnItemSelectedListener;
@@ -36,46 +33,69 @@ import android.widget.TextView;
* A list view example where the data comes from a cursor. * A list view example where the data comes from a cursor.
*/ */
public class List7 extends ListActivity implements OnItemSelectedListener { public class List7 extends ListActivity implements OnItemSelectedListener {
private static String[] PROJECTION = new String[] { private static final String[] PROJECTION = new String[] {
People._ID, People.NAME, People.NUMBER ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.Contacts.HAS_PHONE_NUMBER,
ContactsContract.Contacts.LOOKUP_KEY
}; };
private int mIdColumnIndex;
private int mHasPhoneColumnIndex;
private TextView mPhone;
@Override @Override
protected void onCreate(Bundle savedInstanceState) { protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); super.onCreate(savedInstanceState);
setContentView(R.layout.list_7); setContentView(R.layout.list_7);
mPhone = (TextView) findViewById(R.id.phone); mPhone = (TextView) findViewById(R.id.phone);
getListView().setOnItemSelectedListener(this); getListView().setOnItemSelectedListener(this);
// Get a cursor with all people // Get a cursor with all people
Cursor c = getContentResolver().query(People.CONTENT_URI, PROJECTION, null, null, null); Cursor c = managedQuery(ContactsContract.Contacts.CONTENT_URI,
startManagingCursor(c); PROJECTION, null, null, null);
mPhoneColumnIndex = c.getColumnIndex(People.NUMBER); mIdColumnIndex = c.getColumnIndex(ContactsContract.Contacts._ID);
mHasPhoneColumnIndex = c.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER);
ListAdapter adapter = new SimpleCursorAdapter(this, ListAdapter adapter = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_1, // Use a template android.R.layout.simple_list_item_1, // Use a template
// that displays a // that displays a
// text view // text view
c, // Give the cursor to the list adatper c, // Give the cursor to the list adapter
new String[] {People.NAME}, // Map the NAME column in the new String[] { ContactsContract.Contacts.DISPLAY_NAME }, // Map the NAME column in the
// people database to... // people database to...
new int[] {android.R.id.text1}); // The "text1" view defined in new int[] { android.R.id.text1 }); // The "text1" view defined in
// the XML template // the XML template
setListAdapter(adapter); setListAdapter(adapter);
} }
public void onItemSelected(AdapterView parent, View v, int position, long id) { public void onItemSelected(AdapterView parent, View v, int position, long id) {
if (position >= 0) { if (position >= 0) {
Cursor c = (Cursor) parent.getItemAtPosition(position); final Cursor c = (Cursor) parent.getItemAtPosition(position);
mPhone.setText(c.getString(mPhoneColumnIndex)); if (c.getInt(mHasPhoneColumnIndex) > 0) {
final long contactId = c.getLong(mIdColumnIndex);
final Cursor phones = getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
new String[] { ContactsContract.CommonDataKinds.Phone.NUMBER },
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + contactId, null,
ContactsContract.CommonDataKinds.Phone.IS_SUPER_PRIMARY + " DESC");
try {
phones.moveToFirst();
mPhone.setText(phones.getString(0));
} finally {
phones.close();
}
} else {
mPhone.setText(R.string.list_7_nothing);
}
} }
} }
public void onNothingSelected(AdapterView parent) { public void onNothingSelected(AdapterView parent) {
mPhone.setText(R.string.list_7_nothing); mPhone.setText(R.string.list_7_nothing);
} }
private int mPhoneColumnIndex;
private TextView mPhone;
} }