本文整理匯總了Java中android.view.ViewTreeObserver.OnScrollChangedListener方法的典型用法代碼示例。如果您正苦於以下問題：Java ViewTreeObserver.OnScrollChangedListener方法的具體用法？Java ViewTreeObserver.OnScrollChangedListener怎麽用？Java ViewTreeObserver.OnScrollChangedListener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.ViewTreeObserver的用法示例。
在下文中一共展示了ViewTreeObserver.OnScrollChangedListener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: init
import android.view.ViewTreeObserver; //導入方法依賴的package包/類
private void init() {
if (superListenerField != null) {
try {
mSuperScrollListener = (ViewTreeObserver.OnScrollChangedListener) superListenerField.get(this);
superListenerField.set(this, NOP);
} catch (Exception e) {
mSuperScrollListener = null;
}
}
}
示例2: safelyRemoveListeners
import android.view.ViewTreeObserver; //導入方法依賴的package包/類
/**
* Safely remove the onScrollChangedListener from target ViewTreeObserver
*/
public static void safelyRemoveListeners(ViewTreeObserver observer,
ViewTreeObserver.OnScrollChangedListener listener) {
try {
if (sOnScrollChangedListenersField == null) {
sOnScrollChangedListenersField = ViewTreeObserver.class.getDeclaredField
("mOnScrollChangedListeners");
if (sOnScrollChangedListenersField != null)
sOnScrollChangedListenersField.setAccessible(true);
}
if (sOnScrollChangedListenersField != null) {
Object object = sOnScrollChangedListenersField.get(observer);
if (object != null) {
if (sOnScrollChangedListenersRemoveMethod == null) {
sOnScrollChangedListenersRemoveMethod = object.getClass().getDeclaredMethod
("remove", Object.class);
if (sOnScrollChangedListenersRemoveMethod != null)
sOnScrollChangedListenersRemoveMethod.setAccessible(true);
}
if (sOnScrollChangedListenersRemoveMethod != null) {
sOnScrollChangedListenersRemoveMethod.invoke(object, listener);
}
if (sOnScrollChangedListenersSizeMethod == null) {
sOnScrollChangedListenersSizeMethod = object.getClass().getDeclaredMethod
("size");
if (sOnScrollChangedListenersSizeMethod != null)
sOnScrollChangedListenersSizeMethod.setAccessible(true);
}
if (sOnScrollChangedListenersSizeMethod != null) {
object = sOnScrollChangedListenersSizeMethod.invoke(object);
if (object != null && object instanceof Integer) {
int size = (int) object;
if (size == 0) {
sOnScrollChangedListenersField.set(observer, null);
}
}
}
}
}
} catch (Exception e) {
//ignore exception
}
}