本文整理匯總了Java中android.view.MotionEvent.getHistoricalEventTime方法的典型用法代碼示例。如果您正苦於以下問題：Java MotionEvent.getHistoricalEventTime方法的具體用法？Java MotionEvent.getHistoricalEventTime怎麽用？Java MotionEvent.getHistoricalEventTime使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類android.view.MotionEvent的用法示例。
在下文中一共展示了MotionEvent.getHistoricalEventTime方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: pinchVelocity
import android.view.MotionEvent; //導入方法依賴的package包/類
/**
* <p>Calculates the pinch velocity for the last <code>timeWindow</code> milliseconds.</p>
* @param event
* @param pointerA id of pointer A
* @param pointerB id of pointer B
* @param timeWindow
* @return spacing between both pointers
*/
public static final float pinchVelocity(MotionEvent event, int pointerA, int pointerB, long timeWindow) {
int indexA = event.findPointerIndex(pointerA);
int indexB = event.findPointerIndex(pointerB);
long eventTime = event.getEventTime();
long timeDelta = 0;
float previousSpacing = spacingByIndex(event, indexA, indexB);
float scale = 1;
for(int i = 0, n = event.getHistorySize(); i < n && timeDelta < timeWindow; i++) {
int index = (n - 1) - i;
float x = event.getHistoricalX(indexA, index) - event.getHistoricalX(indexB, index);
float y = event.getHistoricalY(indexA, index) - event.getHistoricalY(indexB, index);
float spacing = (float) Math.sqrt(x * x + y * y);
scale *= previousSpacing / spacing;
previousSpacing = spacing;
timeDelta = eventTime - event.getHistoricalEventTime(index);
}
return (float) Math.pow(Math.pow(scale, 1d / timeWindow), 1000d);
}
示例2: onMoveEvent
import android.view.MotionEvent; //導入方法依賴的package包/類
private void onMoveEvent(final int x, final int y, final long eventTime, final MotionEvent me) {
if (DEBUG_MOVE_EVENT) {
printTouchEvent("onMoveEvent:", x, y, eventTime);
}
if (mIsTrackingForActionDisabled) {
return;
}
if (sGestureEnabler.shouldHandleGesture() && me != null) {
// Add historical points to gesture path.
final int pointerIndex = me.findPointerIndex(mPointerId);
final int historicalSize = me.getHistorySize();
for (int h = 0; h < historicalSize; h++) {
final int historicalX = (int)me.getHistoricalX(pointerIndex, h);
final int historicalY = (int)me.getHistoricalY(pointerIndex, h);
final long historicalTime = me.getHistoricalEventTime(h);
onGestureMoveEvent(historicalX, historicalY, historicalTime,
false /* isMajorEvent */, null);
}
}
if (isShowingMoreKeysPanel()) {
final int translatedX = mMoreKeysPanel.translateX(x);
final int translatedY = mMoreKeysPanel.translateY(y);
mMoreKeysPanel.onMoveEvent(translatedX, translatedY, mPointerId, eventTime);
onMoveKey(x, y);
if (mIsInSlidingKeyInput) {
sDrawingProxy.showSlidingKeyInputPreview(this);
}
return;
}
onMoveEventInternal(x, y, eventTime);
}