Java Code Examples for android.database.Cursor#registerDataSetObserver()
The following examples show how to use
android.database.Cursor#registerDataSetObserver() .
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Example 1
| Source File: CircularViewCursorAdapter.java From CircularView with Apache License 2.0 | 6 votes |
|
void init(final Cursor c, int flags) {
if ((flags & CursorAdapter.FLAG_AUTO_REQUERY) == CursorAdapter.FLAG_AUTO_REQUERY) {
flags |= CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER;
mAutoRequery = true;
} else {
mAutoRequery = false;
}
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER) == CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER) {
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
} else {
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent) {
if (mChangeObserver != null) c.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) c.registerDataSetObserver(mDataSetObserver);
}
}
Example 2
| Source File: RecyclerViewCursorAdapter.java From BLEMeshChat with Mozilla Public License 2.0 | 6 votes |
|
void init(Context context, Cursor c, int flags) {
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mContext = context;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & FLAG_REGISTER_CONTENT_OBSERVER) == FLAG_REGISTER_CONTENT_OBSERVER) {
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
} else {
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent) {
if (mChangeObserver != null) c.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) c.registerDataSetObserver(mDataSetObserver);
}
setHasStableIds(true);
}
Example 3
| Source File: CircularViewCursorAdapter.java From CircularView 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.
*
* @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
notifyDataSetInvalidated();
}
return oldCursor;
}
Example 4
| Source File: CursorAdapter.java From V.FlyoutTest with MIT License | 6 votes |
|
void init(Context context, Cursor c, int flags) {
if ((flags & FLAG_AUTO_REQUERY) == FLAG_AUTO_REQUERY) {
flags |= FLAG_REGISTER_CONTENT_OBSERVER;
mAutoRequery = true;
} else {
mAutoRequery = false;
}
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mContext = context;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & FLAG_REGISTER_CONTENT_OBSERVER) == FLAG_REGISTER_CONTENT_OBSERVER) {
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
} else {
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent) {
if (mChangeObserver != null) c.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) c.registerDataSetObserver(mDataSetObserver);
}
}
Example 5
| Source File: CursorAdapter.java From CodenameOne with GNU General Public License v2.0 | 6 votes |
|
/**
* Swap in a new Cursor, returning the old Cursor. Unlike
* {@link #changeCursor(Cursor)}, the returned old Cursor is <em>not</em>
* closed.
*
* @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 6
| Source File: CursorAdapter.java From V.FlyoutTest 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 7
| Source File: GroupingListAdapter.java From CSipSimple with GNU General Public License v3.0 | 6 votes |
|
public void changeCursor(Cursor cursor) {
if (cursor == mCursor) {
return;
}
if (mCursor != null) {
mCursor.unregisterContentObserver(mChangeObserver);
mCursor.unregisterDataSetObserver(mDataSetObserver);
mCursor.close();
}
mCursor = cursor;
resetCache();
findGroups();
if (cursor != null) {
cursor.registerContentObserver(mChangeObserver);
cursor.registerDataSetObserver(mDataSetObserver);
mRowIdColumnIndex = cursor.getColumnIndexOrThrow("_id");
notifyDataSetChanged();
} else {
// notify the observers about the lack of a data set
notifyDataSetInvalidated();
}
}
Example 8
| Source File: CursorAdapter.java From v2ex with Apache License 2.0 | 6 votes |
|
void init(Context context, Cursor c, int flags) {
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mContext = context;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & FLAG_REGISTER_CONTENT_OBSERVER) == FLAG_REGISTER_CONTENT_OBSERVER) {
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
} else {
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent) {
if (mChangeObserver != null) c.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) c.registerDataSetObserver(mDataSetObserver);
}
setHasStableIds(true);
}
Example 9
| Source File: CursorAdapter.java From CodenameOne with GNU General Public License v2.0 | 6 votes |
|
void init(Context context, Cursor c, int flags) {
if ((flags & FLAG_AUTO_REQUERY) == FLAG_AUTO_REQUERY) {
flags |= FLAG_REGISTER_CONTENT_OBSERVER;
mAutoRequery = true;
} else {
mAutoRequery = false;
}
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mContext = context;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & FLAG_REGISTER_CONTENT_OBSERVER) == FLAG_REGISTER_CONTENT_OBSERVER) {
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
} else {
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent) {
if (mChangeObserver != null) c.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) c.registerDataSetObserver(mDataSetObserver);
}
}
Example 10
| Source File: AlphabetIndexer.java From android_9.0.0_r45 with Apache License 2.0 | 6 votes |
|
/**
* Constructs the indexer.
* @param cursor the cursor containing the data set
* @param sortedColumnIndex the column number in the cursor that is sorted
* alphabetically
* @param alphabet string containing the alphabet, with space as the first character.
* For example, use the string " ABCDEFGHIJKLMNOPQRSTUVWXYZ" for English indexing.
* The characters must be uppercase and be sorted in ascii/unicode order. Basically
* characters in the alphabet will show up as preview letters.
*/
public AlphabetIndexer(Cursor cursor, int sortedColumnIndex, CharSequence alphabet) {
mDataCursor = cursor;
mColumnIndex = sortedColumnIndex;
mAlphabet = alphabet;
mAlphabetLength = alphabet.length();
mAlphabetArray = new String[mAlphabetLength];
for (int i = 0; i < mAlphabetLength; i++) {
mAlphabetArray[i] = Character.toString(mAlphabet.charAt(i));
}
mAlphaMap = new SparseIntArray(mAlphabetLength);
if (cursor != null) {
cursor.registerDataSetObserver(this);
}
// Get a Collator for the current locale for string comparisons.
mCollator = java.text.Collator.getInstance();
mCollator.setStrength(java.text.Collator.PRIMARY);
}
Example 11
| Source File: CursorTreeAdapter.java From android_9.0.0_r45 with Apache License 2.0 | 6 votes |
|
void changeCursor(Cursor cursor, boolean releaseCursors) {
if (cursor == mCursor) return;
deactivate();
mCursor = cursor;
if (cursor != null) {
cursor.registerContentObserver(mContentObserver);
cursor.registerDataSetObserver(mDataSetObserver);
mRowIDColumn = cursor.getColumnIndex("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged(releaseCursors);
} else {
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetInvalidated();
}
}
Example 12
| Source File: CursorAdapter.java From letv with Apache License 2.0 | 5 votes |
|
void init(Context context, Cursor c, int flags) {
boolean cursorPresent = true;
if ((flags & 1) == 1) {
flags |= 2;
this.mAutoRequery = true;
} else {
this.mAutoRequery = false;
}
if (c == null) {
cursorPresent = false;
}
this.mCursor = c;
this.mDataValid = cursorPresent;
this.mContext = context;
this.mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & 2) == 2) {
this.mChangeObserver = new ChangeObserver(this);
this.mDataSetObserver = new MyDataSetObserver(this, null);
} else {
this.mChangeObserver = null;
this.mDataSetObserver = null;
}
if (cursorPresent) {
if (this.mChangeObserver != null) {
c.registerContentObserver(this.mChangeObserver);
}
if (this.mDataSetObserver != null) {
c.registerDataSetObserver(this.mDataSetObserver);
}
}
}
Example 13
| 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 14
| Source File: CursorRecyclerAdapter.java From Ouroboros with GNU General Public License v3.0 | 5 votes |
|
void init(Cursor c) {
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
if (cursorPresent) {
if (mChangeObserver != null) c.registerContentObserver(mChangeObserver);
if (mDataSetObserver != null) c.registerDataSetObserver(mDataSetObserver);
}
}
Example 15
| Source File: CursorAdapter.java From ExRecyclerViewLibrary 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 16
| Source File: CursorPagerAdapter.java From android-open-project-demo with Apache License 2.0 | 5 votes |
|
void init(Context context, Cursor c, int flags) {
if ((flags & FLAG_AUTO_REQUERY) == FLAG_AUTO_REQUERY) {
flags |= FLAG_REGISTER_CONTENT_OBSERVER;
mAutoRequery = true;
} else {
mAutoRequery = false;
}
boolean cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mContext = context;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & FLAG_REGISTER_CONTENT_OBSERVER) == FLAG_REGISTER_CONTENT_OBSERVER) {
mChangeObserver = new ChangeObserver();
mDataSetObserver = new MyDataSetObserver();
} else {
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent) {
if (mChangeObserver != null) {
c.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null) {
c.registerDataSetObserver(mDataSetObserver);
}
}
}
Example 17
| 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 18
| Source File: CursorTreeAdapter.java From android_9.0.0_r45 with Apache License 2.0 | 5 votes |
|
MyCursorHelper(Cursor cursor) {
final boolean cursorPresent = cursor != null;
mCursor = cursor;
mDataValid = cursorPresent;
mRowIDColumn = cursorPresent ? cursor.getColumnIndex("_id") : -1;
mContentObserver = new MyContentObserver();
mDataSetObserver = new MyDataSetObserver();
if (cursorPresent) {
cursor.registerContentObserver(mContentObserver);
cursor.registerDataSetObserver(mDataSetObserver);
}
}
Example 19
| Source File: CursorAdapter.java From MiBandDecompiled with Apache License 2.0 | 4 votes |
|
void a(Context context, Cursor cursor, int i)
{
boolean flag = true;
int j;
if ((i & 1) == flag)
{
i |= 2;
mAutoRequery = flag;
} else
{
mAutoRequery = false;
}
if (cursor == null)
{
flag = false;
}
mCursor = cursor;
mDataValid = flag;
mContext = context;
if (flag)
{
j = cursor.getColumnIndexOrThrow("_id");
} else
{
j = -1;
}
mRowIDColumn = j;
if ((i & 2) == 2)
{
mChangeObserver = new b(this);
mDataSetObserver = new c(this, null);
} else
{
mChangeObserver = null;
mDataSetObserver = null;
}
if (flag)
{
if (mChangeObserver != null)
{
cursor.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null)
{
cursor.registerDataSetObserver(mDataSetObserver);
}
}
}
Example 20
| Source File: MediaStoreImageAdapter.java From libcommon with Apache License 2.0 | 4 votes |
|
@Nullable
protected Cursor swapCursor(@Nullable final 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);
}
synchronized (mValues) {
mValues.clear();
if (newCursor.moveToFirst()) {
int pos = 0;
do {
info.loadFromCursor(newCursor);
if (!mNeedValidate || info.canRead(mCr)) {
mValues.add(pos);
}
pos++;
} while (newCursor.moveToNext());
}
}
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
} else {
synchronized (mValues) {
mValues.clear();
}
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetInvalidated();
}
return oldCursor;
}
