Obtener el cursor correcto en CustomCursor Adapater getView ()
Tengo un adaptador de cursor personalizado donde cada fila consta de una casilla de verificación, vista de texto y botón. El botón se establece inicialmente como GONE, cuando el usuario selecciona la casilla de verificación Quiero que se muestre el botón para que el usuario pueda hacer clic en él y eliminar la fila correspondiente.
Mi problema es que en mi getView () no puedo obtener el cursor correcto, así que sigue obteniendocursorOutOfBoundsExceptions.
También quiero eliminar el bindView () si ya no lo necesito.
<code>public class DeleteCampaignCustomCursorAdapater extends CursorAdapter {
protected static final String TAG = null;
DatabaseHelper myDbHelper;
protected SQLiteDatabase db;
private final Activity context;
private LayoutInflater mInflater;
protected ListView mListView;
private Cursor c;
public static int[] checked;
TextView merchantNameView;
Button deleteButton;
CheckBox selectForDelete;
//ImageView moveButton;
public DeleteCampaignCustomCursorAdapater(Context context, Cursor c) {
super(context, c);
this.context = (Activity) context;
mInflater = LayoutInflater.from(context);
this.c = c;
initializeChecked();
}
@Override
public void bindView(View view, Context context, final Cursor cursor) {
/*myDbHelper = new DatabaseHelper(context); //Links to DatabaseHelper class
merchantNameView = (TextView) view.findViewById(R.id.deleteMerchantNameView);
deleteButton = (Button) view.findViewById(R.id.deleteButton);
//selectForDelete = (CheckBox) view.findViewById(R.id.deleteCheckBox);
//moveButton = (ImageView) view.findViewById(R.id.moveButton);
merchantNameView.setText(cursor.getString(cursor.getColumnIndex("merchantName")));
final int rowID = cursor.getInt(cursor.getColumnIndex("_id"));
//final long rowID = mListView.getSelectedItemId();
if (checked[rowID] == 0) {
selectForDelete.setChecked(false);
} else {
selectForDelete.setChecked(true);
}
selectForDelete.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if ( isChecked )
{
// Make deleteButton appear
RelativeLayout ll = (RelativeLayout) buttonView.getParent();
deleteButton = (Button) ll.findViewById(R.id.deleteButton);
checked[rowID] = 1;
deleteButton.setVisibility(0);
}
else {
//Hide deleteButton
RelativeLayout ll = (RelativeLayout) buttonView.getParent();
deleteButton = (Button) ll.findViewById(R.id.deleteButton);
checked[rowID] = 1;
deleteButton.setVisibility(8);
}
}
});
deleteButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
if(rowID > 0) {
//Log.d(TAG, "Button Click. rowID = "+rowID);
myDbHelper.deleteRecordWithID(rowID);
cursor.requery();
notifyDataSetChanged();
initializeChecked(); // re-set the checked array
}
}
}); */
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mInflater.inflate(R.layout.delete_campaign_row_layout, null);
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
myDbHelper = new DatabaseHelper(context); //Links to DatabaseHelper class
if (convertView == null) {
mInflater = context.getLayoutInflater();
convertView = mInflater.inflate(R.layout.delete_campaign_row_layout, null);
}
merchantNameView = (TextView) convertView.findViewById(R.id.deleteMerchantNameView);
deleteButton = (Button) convertView.findViewById(R.id.deleteButton);
selectForDelete = (CheckBox) convertView.findViewById(R.id.deleteCheckBox);
merchantNameView.setText(c.getString(c.getColumnIndex("merchantName")));
final int rowID = c.getInt(c.getColumnIndex("_id"));
//final long rowID = mListView.getSelectedItemId();
if (checked[position] == 0) {
selectForDelete.setChecked(false);
} else {
selectForDelete.setChecked(true);
}
selectForDelete.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if ( isChecked )
{
// Make deleteButton appear
RelativeLayout ll = (RelativeLayout) buttonView.getParent();
deleteButton = (Button) ll.findViewById(R.id.deleteButton);
checked[position] = 1;
deleteButton.setVisibility(0);
}
else {
//Hide deleteButton
RelativeLayout ll = (RelativeLayout) buttonView.getParent();
deleteButton = (Button) ll.findViewById(R.id.deleteButton);
checked[position] = 1;
deleteButton.setVisibility(8);
}
}
});
deleteButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
if(rowID > 0) {
//Log.d(TAG, "Button Click. rowID = "+rowID);
myDbHelper.deleteRecordWithID(rowID);
c.requery();
notifyDataSetChanged();
initializeChecked(); // re-set the checked array
}
}
});
return convertView;
}
public void initializeChecked() {
checked = new int[c.getCount()];
int i = 0;
while (i < c.getCount()) {
checked[i] = 0;
i++;
}
}
</code>}
Logcat:
<code>05-12 00:36:23.232: W/KeyCharacterMap(15777): Can't open keycharmap file 05-12 00:36:23.232: W/KeyCharacterMap(15777): Error loading keycharmap file '/system/usr/keychars/synaptics-rmi-touchscreen.kcm.bin'. hw.keyboards.65537.devname='synaptics-rmi-touchscreen' 05-12 00:36:23.232: I/KeyCharacterMap(15777): Using default keymap: /system/usr/keychars/qwerty.kcm.bin 05-12 00:36:23.332: D/WindowManagerImpl(15777): addView, new view, mViews[1]: com.android.internal.policy.impl.PhoneWindow$DecorView@4053e328 05-12 00:36:23.903: D/View(15777): onTouchEvent: viewFlags: 0x18005001 05-12 00:36:23.903: D/View(15777): onTouchEvent: isFocusable: true, isFocusableInTouchMode: false, isFocused: false; focusTaken: false 05-12 00:36:23.913: D/WindowManagerImpl(15777): finishRemoveViewLocked, mViews[1]: com.android.internal.policy.impl.PhoneWindow$DecorView@4053e328 05-12 00:36:23.973: D/Database(15777): dbopen(): path = /data/data/com.roardog.FidelrBasic/databases/Fidelr_memory, flag = 6, file size = 5120 05-12 00:36:23.973: D/Database(15777): dbopen(): path = /data/data/com.roardog.FidelrBasic/databases/Fidelr_memory, mode: wal, disk free size: 253 M, handle: 0x387968 05-12 00:36:23.983: D/ATRecorder(15777): com.htc.autotest.dlib.RecordEngine in loader dalvik.system.DexClassLoader@40550268 05-12 00:36:23.983: D/WindowManagerImpl(15777): addView, new view, mViews[1]: com.android.internal.policy.impl.PhoneWindow$DecorView@40548d90 05-12 00:36:23.993: D/AndroidRuntime(15777): Shutting down VM 05-12 00:36:23.993: W/dalvikvm(15777): threadid=1: thread exiting with uncaught exception (group=0x4001d5a0) 05-12 00:36:24.023: E/AndroidRuntime(15777): FATAL EXCEPTION: main 05-12 00:36:24.023: E/AndroidRuntime(15777): android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 3 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:585) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:214) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:41) 05-12 00:36:24.023: E/AndroidRuntime(15777): at com.roardog.FidelrBasic.DeleteCampaignCustomCursorAdapater.getView(DeleteCampaignCustomCursorAdapater.java:125) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.AbsListView.obtainView(AbsListView.java:1449) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.ListView.measureHeightOfChildren(ListView.java:1265) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.ListView.onMeasure(ListView.java:1128) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.View.measure(View.java:8553) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3261) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1017) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.LinearLayout.measureVertical(LinearLayout.java:386) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.LinearLayout.onMeasure(LinearLayout.java:309) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.View.measure(View.java:8553) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3261) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.FrameLayout.onMeasure(FrameLayout.java:250) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.View.measure(View.java:8553) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3261) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.widget.FrameLayout.onMeasure(FrameLayout.java:250) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.View.measure(View.java:8553) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.ViewRoot.performTraversals(ViewRoot.java:915) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.view.ViewRoot.handleMessage(ViewRoot.java:1991) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.os.Handler.dispatchMessage(Handler.java:99) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.os.Looper.loop(Looper.java:150) 05-12 00:36:24.023: E/AndroidRuntime(15777): at android.app.ActivityThread.main(ActivityThread.java:4385) 05-12 00:36:24.023: E/AndroidRuntime(15777): at java.lang.reflect.Method.invokeNative(Native Method) 05-12 00:36:24.023: E/AndroidRuntime(15777): at java.lang.reflect.Method.invoke(Method.java:507) </code>
05-12 00: 36: 24.023: E / AndroidRuntime (15777): com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:849) 05-12 00: 36: 24.023: E / AndroidRuntime ( 15777): en com.android.internal.os.ZygoteInit.main (ZygoteInit.java:607) 05-12 00: 36: 24.023: E / AndroidRuntime (15777): en dalvik.system.NativeStart.main (Método nativo) 05-12 00: 36: 25.304: D / Proceso (15777): killProcess, pid = 15777 05-12 00: 36: 25.304: D / Proceso (15777): dalvik.system.VMStack.getThreadStackTrace (Método nativo) 05- 12 00: 36: 25.304: D / Process (15777): java.lang.Thread.getStackTrace (Thread.java:745) 05-12 00: 36: 25.304: D / Process (15777): android.os.Process. killProcess (Process.java:797) 05-12 00: 36: 25.304: D / Process (15777): com.android.internal.os.RuntimeInit $ UncaughtHandler.uncaughtException (RuntimeInit.java:108) 05-12 00:36 : 25.304: D / Process (15777): java.lang.ThreadGroup.uncaughtException (ThreadGroup.java:854) 05-12 00: 36: 25.314: D / Process (15777): java.lang.ThreadGroup.uncaughtException (ThreadGroup. java: 851) 05-12 00: 3 6: 25.314: D / Proceso (15777): dalvik.system.NativeStart.main (Método nativo) 05-12 00: 36: 25.314: I / Proceso (15777): Señal de envío. PID: 15777 SIG: 9
SOLUCIÓN DE TRABAJO FINAL
<code>public class DeleteCampaignCustomCursorAdapater extends CursorAdapter {
protected static final String TAG = null;
DatabaseHelper myDbHelper;
protected SQLiteDatabase db;
private final Activity context;
private LayoutInflater mInflater;
protected ListView mListView;
private Cursor c;
public static int[] checked;
TextView merchantNameView;
Button deleteButton;
CheckBox selectForDelete;
//ImageView moveButton;
public DeleteCampaignCustomCursorAdapater(Context context, Cursor c) {
super(context, c);
this.context = (Activity) context;
mInflater = LayoutInflater.from(context);
this.c = c;
c.moveToFirst();
initializeChecked();
}
@Override
public void bindView(View view, Context context, final Cursor cursor) {
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mInflater.inflate(R.layout.delete_campaign_row_layout, null);
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
c.moveToPosition(position);
myDbHelper = new DatabaseHelper(context); //Links to DatabaseHelper class
if (convertView == null) {
mInflater = context.getLayoutInflater();
convertView = mInflater.inflate(R.layout.delete_campaign_row_layout, null);
}
merchantNameView = (TextView) convertView.findViewById(R.id.deleteMerchantNameView);
deleteButton = (Button) convertView.findViewById(R.id.deleteButton);
selectForDelete = (CheckBox) convertView.findViewById(R.id.deleteCheckBox);
merchantNameView.setText(c.getString(c.getColumnIndex("merchantName")));
final int rowID = c.getInt(c.getColumnIndex("_id"));
if (checked[position] == 0) {
selectForDelete.setChecked(false);
} else {
selectForDelete.setChecked(true);
}
selectForDelete.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if ( isChecked )
{
// Make deleteButton appear
RelativeLayout ll = (RelativeLayout) buttonView.getParent();
deleteButton = (Button) ll.findViewById(R.id.deleteButton);
checked[position] = 1;
deleteButton.setVisibility(0);
}
else {
//Hide deleteButton
RelativeLayout ll = (RelativeLayout) buttonView.getParent();
deleteButton = (Button) ll.findViewById(R.id.deleteButton);
//checked[position] = 1;
deleteButton.setVisibility(8);
}
}
});
deleteButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
if(rowID > 0) {
//Log.d(TAG, "Button Click. rowID = "+rowID);
myDbHelper.deleteRecordWithID(rowID); //Call deleteRecord on selected row
c.requery(); //requery the cursor
notifyDataSetChanged(); //notify the view the data set has changed
initializeChecked(); // re-set the checked array
}
}
});
return convertView;
}
public void initializeChecked() {
checked = new int[c.getCount()];
int i = 0;
while (i < c.getCount()) {
checked[i] = 0;
i++;
}
}
</code>}