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Fix crash when MotionEvent is initialized with more than 2 fingers, and bump

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its initial size to allow for up to 5 fingers.
This commit is contained in:
Dianne Hackborn
2009-08-06 12:43:01 -07:00
parent 838ffacd2e
commit 1e8dfc73fb
1 changed files with 19 additions and 3 deletions
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22
core/java/android/view/MotionEvent.java
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@@ -185,7 +185,12 @@ public final class MotionEvent implements Parcelable {
*/
static public final int NUM_SAMPLE_DATA = 4;
static private final int BASE_AVAIL_POINTERS = 2;
/**
* Number of possible pointers.
* @hide
*/
static public final int BASE_AVAIL_POINTERS = 5;
static private final int BASE_AVAIL_SAMPLES = 8;
static private final int MAX_RECYCLED = 10;
@@ -290,8 +295,19 @@ public final class MotionEvent implements Parcelable {
ev.mNumPointers = pointers;
ev.mNumSamples = 1;
System.arraycopy(inPointerIds, 0, ev.mPointerIdentifiers, 0, pointers);
System.arraycopy(inData, 0, ev.mDataSamples, 0, pointers * NUM_SAMPLE_DATA);
int[] pointerIdentifiers = ev.mPointerIdentifiers;
if (pointerIdentifiers.length < pointers) {
ev.mPointerIdentifiers = pointerIdentifiers = new int[pointers];
}
System.arraycopy(inPointerIds, 0, pointerIdentifiers, 0, pointers);
final int ND = pointers * NUM_SAMPLE_DATA;
float[] dataSamples = ev.mDataSamples;
if (dataSamples.length < ND) {
ev.mDataSamples = dataSamples = new float[ND];
}
System.arraycopy(inData, 0, dataSamples, 0, ND);
ev.mTimeSamples[0] = eventTime;
if (DEBUG_POINTERS) {