Java Code Examples for android.database.Cursor#unregisterDataSetObserver()
The following examples show how to use
android.database.Cursor#unregisterDataSetObserver() .
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Example 1
| Source File: CursorAdapter.java From guideshow with MIT License | 6 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there wasa not one.
* If the given new Cursor is the same instance is the previously set
* Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) oldCursor.unregisterContentObserver(mChangeObserver);
if (mDataSetObserver != null) oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) newCursor.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) newCursor.registerDataSetObserver(mDataSetObserver);
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetInvalidated();
}
return oldCursor;
}
Example 2
| Source File: CursorAdapter.java From watchlist with Apache License 2.0 | 6 votes |
|
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
final Cursor oldCursor = mCursor;
if (oldCursor != null && mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (mCursor != null) {
if (mDataSetObserver != null) {
mCursor.registerDataSetObserver(mDataSetObserver);
}
rowIdColumn = newCursor.getColumnIndexOrThrow("_id");
dataIsValid = true;
notifyDataSetChanged();
} else {
rowIdColumn = -1;
dataIsValid = false;
notifyDataSetChanged();
}
return oldCursor;
}
Example 3
| Source File: CursorRecyclerViewAdapter.java From deltachat-android with GNU General Public License v3.0 | 6 votes |
|
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == cursor) {
return null;
}
final Cursor oldCursor = cursor;
if (oldCursor != null) {
oldCursor.unregisterDataSetObserver(observer);
}
cursor = newCursor;
if (cursor != null) {
cursor.registerDataSetObserver(observer);
}
valid = cursor != null;
notifyDataSetChanged();
return oldCursor;
}
Example 4
| Source File: CursorRecyclerViewAdapter.java From Zom-Android-XMPP with GNU General Public License v3.0 | 6 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
final Cursor oldCursor = mCursor;
if (oldCursor != null && mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (mCursor != null) {
if (mDataSetObserver != null) {
mCursor.registerDataSetObserver(mDataSetObserver);
}
mRowIdColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
notifyDataSetChanged();
} else {
mRowIdColumn = -1;
mDataValid = false;
notifyDataSetChanged();
//There is no notifyDataSetInvalidated() method in RecyclerView.Adapter
}
return oldCursor;
}
Example 5
| Source File: CursorRecyclerViewAdapter.java From homeassist with Apache License 2.0 | 6 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
final Cursor oldCursor = mCursor;
if (oldCursor != null && mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (mCursor != null) {
if (mDataSetObserver != null) {
mCursor.registerDataSetObserver(mDataSetObserver);
}
mRowIdColumn = newCursor.getColumnIndexOrThrow(getIdColName());
mDataValid = true;
notifyDataSetChanged();
} else {
mRowIdColumn = -1;
mDataValid = false;
notifyDataSetChanged();
//There is no notifyDataSetInvalidated() method in RecyclerView.Adapter
}
return oldCursor;
}
Example 6
| Source File: MergeCursor.java From libcommon with Apache License 2.0 | 6 votes |
|
/**
* 指定したインデックスが示す位置に指定したCursorをセットする
* 保持しているCursorの数がインデックスより少ない場合は空いている箇所にnullがセットされる
* @param index
* @param cursor
* @return
*/
@Nullable
public Cursor add(final int index, @NonNull final Cursor cursor) {
synchronized (mCursors) {
if (mCursors.size() <= index) {
mCursors.ensureCapacity(index + 1);
for (int i = mCursors.size(); i <= index; i++) {
mCursors.add(null);
}
}
final Cursor oldCursor = getCursor(index);
mCursors.add(index, cursor);
cursor.registerDataSetObserver(mObserver);
if (oldCursor != null) {
oldCursor.unregisterDataSetObserver(mObserver);
}
return oldCursor;
}
}
Example 7
| Source File: TableOfContentRecyclerViewAdapter.java From IslamicLibraryAndroid with GNU General Public License v3.0 | 6 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*/
@Nullable
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
final Cursor oldCursor = mCursor;
if (oldCursor != null && mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (mCursor != null) {
if (mDataSetObserver != null) {
mCursor.registerDataSetObserver(mDataSetObserver);
}
mDataValid = true;
notifyDataSetChanged();
} else {
mRowIdColumn = -1;
mDataValid = false;
notifyDataSetChanged();
//There is no notifyDataSetInvalidated() method in RecyclerView.Adapter
}
return oldCursor;
}
Example 8
| Source File: CursorRecyclerViewAdapter.java From GoogleFitExample with Apache License 2.0 | 6 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
final Cursor oldCursor = mCursor;
if (oldCursor != null && mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (mCursor != null) {
if (mDataSetObserver != null) {
mCursor.registerDataSetObserver(mDataSetObserver);
}
mRowIdColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
notifyDataSetChanged();
} else {
mRowIdColumn = -1;
mDataValid = false;
notifyDataSetChanged();
//There is no notifyDataSetInvalidated() method in RecyclerView.Adapter
}
return oldCursor;
}
Example 9
| Source File: MergeCursor.java From libcommon with Apache License 2.0 | 5 votes |
|
/**
* 指定したCursorを削除する
* @param cursor
*/
public void remove(@NonNull final Cursor cursor) {
synchronized (mCursors) {
cursor.unregisterDataSetObserver(mObserver);
mCursors.remove(cursor);
}
}
Example 10
| Source File: CursorRecyclerAdapter.java From Ouroboros with GNU General Public License v3.0 | 5 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there wasa not one.
* If the given new Cursor is the same instance is the previously set
* Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) oldCursor.unregisterContentObserver(mChangeObserver);
if (mDataSetObserver != null) oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) newCursor.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) newCursor.registerDataSetObserver(mDataSetObserver);
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
// notifyDataSetInvalidated();
notifyItemRangeRemoved(0, getItemCount());
}
return oldCursor;
}
Example 11
| Source File: MergeCursor.java From libcommon with Apache License 2.0 | 5 votes |
|
@Override
public void unregisterDataSetObserver(final DataSetObserver observer) {
mObserver = mDefaultObserver;
synchronized (mCursors) {
for (final Cursor cursor: mCursors) {
if (cursor != null) {
cursor.unregisterDataSetObserver(observer);
}
}
}
}
Example 12
| Source File: RecyclerViewCursorAdapter.java From BLEMeshChat with Mozilla Public License 2.0 | 5 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there wasa not one.
* If the given new Cursor is the same instance is the previously set
* Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) oldCursor.unregisterContentObserver(mChangeObserver);
if (mDataSetObserver != null) oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) newCursor.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) newCursor.registerDataSetObserver(mDataSetObserver);
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetChanged();
// notifyDataSetInvalidated();
}
return oldCursor;
}
Example 13
| Source File: CursorRecyclerAdapter.java From yahnac with Apache License 2.0 | 5 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there wasa not one.
* If the given new Cursor is the same instance is the previously set
* Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) {
oldCursor.unregisterContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) {
newCursor.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
newCursor.registerDataSetObserver(mDataSetObserver);
}
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
// notifyDataSetInvalidated();
notifyItemRangeRemoved(0, getItemCount());
}
return oldCursor;
}
Example 14
| Source File: RecyclerViewCursorBaseAdapter.java From HightCopyWX with Apache License 2.0 | 5 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there wasa not one.
* If the given new Cursor is the same instance is the previously set
* Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) oldCursor.unregisterContentObserver(mChangeObserver);
if (mDataSetObserver != null) oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) newCursor.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) newCursor.registerDataSetObserver(mDataSetObserver);
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
// notifyDataSetInvalidated();
//there is no notifyDataSetInvalidated method we should use notifyDataSetChanged method;
notifyDataSetChanged();
}
return oldCursor;
}
Example 15
| Source File: CursorPagerAdapter.java From android-open-project-demo with Apache License 2.0 | 5 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike {@link #changeCursor(Cursor)}, the
* returned old Cursor is <em>not</em> closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there was not one. If the given new Cursor
* is the same instance is the previously set Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) {
oldCursor.unregisterContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) {
newCursor.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
newCursor.registerDataSetObserver(mDataSetObserver);
}
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetChanged();
}
return oldCursor;
}
Example 16
| Source File: CursorAdapter.java From letv with Apache License 2.0 | 5 votes |
|
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == this.mCursor) {
return null;
}
Cursor oldCursor = this.mCursor;
if (oldCursor != null) {
if (this.mChangeObserver != null) {
oldCursor.unregisterContentObserver(this.mChangeObserver);
}
if (this.mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(this.mDataSetObserver);
}
}
this.mCursor = newCursor;
if (newCursor != null) {
if (this.mChangeObserver != null) {
newCursor.registerContentObserver(this.mChangeObserver);
}
if (this.mDataSetObserver != null) {
newCursor.registerDataSetObserver(this.mDataSetObserver);
}
this.mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
this.mDataValid = true;
notifyDataSetChanged();
return oldCursor;
}
this.mRowIDColumn = -1;
this.mDataValid = false;
notifyDataSetInvalidated();
return oldCursor;
}
Example 17
| Source File: CursorAdapter.java From letv with Apache License 2.0 | 5 votes |
|
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == this.mCursor) {
return null;
}
Cursor oldCursor = this.mCursor;
if (oldCursor != null) {
if (this.mChangeObserver != null) {
oldCursor.unregisterContentObserver(this.mChangeObserver);
}
if (this.mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(this.mDataSetObserver);
}
}
this.mCursor = newCursor;
if (newCursor != null) {
if (this.mChangeObserver != null) {
newCursor.registerContentObserver(this.mChangeObserver);
}
if (this.mDataSetObserver != null) {
newCursor.registerDataSetObserver(this.mDataSetObserver);
}
this.mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
this.mDataValid = true;
notifyDataSetChanged();
return oldCursor;
}
this.mRowIDColumn = -1;
this.mDataValid = false;
notifyDataSetInvalidated();
return oldCursor;
}
Example 18
| Source File: CursorRecyclerAdapter.java From android-atleap with Apache License 2.0 | 5 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @param newCursor The new cursor to be used.
* @return Returns the previously set Cursor, or null if there wasa not one.
* If the given new Cursor is the same instance is the previously set
* Cursor, null is also returned.
*/
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) oldCursor.unregisterContentObserver(mChangeObserver);
if (mDataSetObserver != null) oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
mCursor = newCursor;
if (newCursor != null) {
if (mChangeObserver != null) newCursor.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) newCursor.registerDataSetObserver(mDataSetObserver);
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetChanged();
//notifyDataSetInvalidated();
}
return oldCursor;
}
Example 19
| Source File: MediaStoreCursorRecyclerAdapter.java From libcommon with Apache License 2.0 | 5 votes |
|
/**
* カーソルを交換
* @param newCursor
* @return
*/
@Nullable
protected Cursor swapCursor(@Nullable final Cursor newCursor) {
if (DEBUG) Log.v(TAG, "swapCursor:" + newCursor);
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
if (oldCursor != null) {
if (mChangeObserver != null) {
oldCursor.unregisterContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
}
synchronized (mSync) {
mCursor = newCursor;
}
if (newCursor != null) {
if (mChangeObserver != null) {
newCursor.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
newCursor.registerDataSetObserver(mDataSetObserver);
}
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetInvalidated();
}
return oldCursor;
}
Example 20
| Source File: GameAdapter.java From citra_android with GNU General Public License v3.0 | 5 votes |
|
/**
* When a load is finished, call this to replace the existing data with the newly-loaded
* data.
*
* @param cursor The newly-loaded Cursor.
*/
public void swapCursor(Cursor cursor)
{
// Sanity check.
if (cursor == mCursor)
{
return;
}
// Before getting rid of the old cursor, disassociate it from the Observer.
final Cursor oldCursor = mCursor;
if (oldCursor != null && mObserver != null)
{
oldCursor.unregisterDataSetObserver(mObserver);
}
mCursor = cursor;
if (mCursor != null)
{
// Attempt to associate the new Cursor with the Observer.
if (mObserver != null)
{
mCursor.registerDataSetObserver(mObserver);
}
mDatasetValid = true;
}
else
{
mDatasetValid = false;
}
notifyDataSetChanged();
}
