Example usage for android.database Cursor isFirst

Introduction

In this page you can find the example usage for android.database Cursor isFirst.

Prototype

boolean isFirst();

Source Link

Document

Returns whether the cursor is pointing to the first row.

Usage

From source file:pandroid.agent.PandroidAgentListener.java

/**
 *  Retrieves the number of incoming, missed and outgoing calls
 *//*www.j  av  a2s .  c  o m*/
private void getCalls() {
    Cursor c = getApplicationContext().getContentResolver().query(android.provider.CallLog.Calls.CONTENT_URI,
            null, null, null, null);
    c.moveToFirst();
    int typeColumn = c.getColumnIndex(android.provider.CallLog.Calls.TYPE);
    int incoming = 0;
    int outgoing = 0;
    int missed = 0;

    if (c.isFirst()) {

        while (c.isAfterLast() == false) {
            int callType = c.getInt(typeColumn);

            switch (callType) {
            case android.provider.CallLog.Calls.INCOMING_TYPE:
                incoming++;
                break;
            case android.provider.CallLog.Calls.MISSED_TYPE:
                missed++;
                break;
            case android.provider.CallLog.Calls.OUTGOING_TYPE:
                outgoing++;
                break;
            }
            c.moveToNext();
        }

        putSharedData("PANDROID_DATA", "incomingCalls", "" + incoming, "integer");
        putSharedData("PANDROID_DATA", "missedCalls", "" + missed, "integer");
        putSharedData("PANDROID_DATA", "outgoingCalls", "" + outgoing, "integer");
    }

    c.close();
}

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From source file:com.android.email.activity.MessageView.java

/**
 * Update the arrows based on the current position of the older/newer cursor.
 *///  w  ww .ja v a2 s  .  c o m
private void updateNavigationArrows(Cursor cursor) {
    if (cursor != null) {
        boolean hasNewer, hasOlder;
        if (cursor.isAfterLast() || cursor.isBeforeFirst()) {
            // The cursor not being on a message means that the current message was not found.
            // While this should not happen, simply disable prev/next arrows in that case.
            hasNewer = hasOlder = false;
        } else {
            hasNewer = !cursor.isFirst();
            hasOlder = !cursor.isLast();
        }
        mMoveToNewer.setVisibility(hasNewer ? View.VISIBLE : View.INVISIBLE);
        mMoveToOlder.setVisibility(hasOlder ? View.VISIBLE : View.INVISIBLE);
    }
}

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From source file:nl.sogeti.android.gpstracker.viewer.LoggerMap.java

/**
 * For the current track identifier the route of that track is drawn by
 * adding a OverLay for each segments in the track
 *///from   w w  w .  j  a v a  2  s  .c  om
private void createDataOverlays() {
    mLastSegmentOverlay = null;
    resetOverlay();
    setupHardwareAcceleration();

    ContentResolver resolver = this.getContentResolver();
    Cursor segments = null;
    int trackColoringMethod = Integer.valueOf(mSharedPreferences.getString(Constants.TRACKCOLORING, "2"))
            .intValue();

    try {
        Uri segmentsUri = Uri.withAppendedPath(Tracks.CONTENT_URI, this.mTrackId + "/segments");
        segments = resolver.query(segmentsUri, new String[] { Segments._ID }, null, null, null);
        if (segments != null && segments.moveToFirst()) {
            do {
                long segmentsId = segments.getLong(0);
                Uri segmentUri = ContentUris.withAppendedId(segmentsUri, segmentsId);
                SegmentOverlay segmentOverlay = new SegmentOverlay(this, segmentUri, trackColoringMethod,
                        mAverageSpeed, this.mMapView, mHandler);
                mMapView.getOverlays().add(segmentOverlay);
                mLastSegmentOverlay = segmentOverlay;
                if (segments.isFirst()) {
                    segmentOverlay.addPlacement(SegmentOverlay.FIRST_SEGMENT);
                }
                if (segments.isLast()) {
                    segmentOverlay.addPlacement(SegmentOverlay.LAST_SEGMENT);
                }
                mLastSegment = segmentsId;
            } while (segments.moveToNext());
        }
    } finally {
        if (segments != null) {
            segments.close();
        }
    }

    Uri lastSegmentUri = Uri.withAppendedPath(Tracks.CONTENT_URI,
            mTrackId + "/segments/" + mLastSegment + "/waypoints");
    resolver.unregisterContentObserver(this.mSegmentWaypointsObserver);
    resolver.registerContentObserver(lastSegmentUri, false, this.mSegmentWaypointsObserver);
}

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