小编squ*_*rog的帖子

我有一个自定义滑块类型的对象,我希望它更有用.目前我使用UIPanGestureRecognizer并translationInView使其工作.它工作得很好,但我想在那里使用某种速度让它感觉更有用.我已经尝试了一些东西,但不能弄清楚如何正确实现速度changedLevel方程.

- (void)panDetected:(UIPanGestureRecognizer *)gesture {

    CGPoint swipeLocation = [gesture locationInView:self.tableView];
    NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:swipeLocation];
    LevelCounterTableCell *swipedCell = (LevelCounterTableCell *)[self.tableView cellForRowAtIndexPath:indexPath];

    if([gesture state] == UIGestureRecognizerStateBegan) {
        NSString *originalLevelString = swipedCell.levelNumber.text;
        originalLevel = [originalLevelString intValue]; // int originalLevel
    }

    if ([gesture state] == UIGestureRecognizerStateChanged) {

        CGFloat xTranslation = [gesture translationInView:[[gesture view] superview]].x;
        CGFloat xVelocity = [gesture velocityInView: [[gesture view] superview]].x;

        // Pan threshold is currently set to 8.0. 
        // 8.0 is a decent level for …

我在Android Studio插件Android支持中遇到以下异常.

为了摆脱这个错误,我将Android Studio更新为14.1,但是工作室只是构建应用程序但不运行它.

null
java.lang.NullPointerException
at java.io.File.<init>(File.java:277)
at  com.android.sdklib.internal.avd.AvdManager.parseAvdInfo(AvdManager.java:1616)
at com.android.sdklib.internal.avd.AvdManager.buildAvdList(AvdManager.java:1577)
at com.android.sdklib.internal.avd.AvdManager.<init>(AvdManager.java:350)
at com.android.sdklib.internal.avd.AvdManager.getInstance(AvdManager.java:373)
at org.jetbrains.android.facet.AndroidFacet.getAvdManager(AndroidFacet.java:585)
at org.jetbrains.android.facet.AndroidFacet.getAvdManagerSilently(AndroidFacet.java:571)
at org.jetbrains.android.run.DeviceChooser.<init>(DeviceChooser.java:143)
at org.jetbrains.android.run.ExtendedDeviceChooserDialog.<init>(ExtendedDeviceChooserDialog.java:80)
at org.jetbrains.android.run.AndroidRunningState.execute(AndroidRunningState.java:263)
at com.intellij.execution.runners.DefaultProgramRunner.doExecute(DefaultProgramRunner.java:38)
at org.jetbrains.android.run.AndroidDebugRunner.doExec(AndroidDebugRunner.java:144)
at org.jetbrains.android.run.AndroidDebugRunner.doExecute(AndroidDebugRunner.java:135)
at com.intellij.execution.runners.GenericProgramRunner$1.execute(GenericProgramRunner.java:48)
at com.intellij.execution.impl.ExecutionManagerImpl$2.run(ExecutionManagerImpl.java:208)
at com.intellij.openapi.project.DumbServiceImpl.runWhenSmart(DumbServiceImpl.java:95)
at com.intellij.execution.impl.ExecutionManagerImpl$1$1.run(ExecutionManagerImpl.java:172)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
at java.awt.EventQueue.access$400(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:697)
at java.awt.EventQueue$3.run(EventQueue.java:691)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:697)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:524)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:335)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

我有一个方法,从NSNumber创建一个钱样式字符串.

+ (NSString *)formatShortPayment: (NSNumber *)payment {

    if (![payment isEqual: [NSNull null]]) {

        // Set locale to GB
        NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_GB"];
        NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
        [formatter setLocale: locale];
        [formatter setNumberStyle: NSNumberFormatterCurrencyStyle];

        // If the payment is 1000 or over, get rid of fraction numbers
        if ([payment doubleValue] >= 1000.0) {
            [formatter setMaximumFractionDigits: 0];
            payment = [NSNumber numberWithFloat:([payment floatValue] / 1000)];
        }

        else {
            // Here's where I want to check if the value ends with …

当您创建一个新项目时,我似乎记得您能够使用方法访问它在故事板self.window中创建的基本空白窗口AppDelegate.

我似乎无法AppDelegate.h通过故事板为文件设置参考出口.我只是产生幻觉或是否无法访问窗口/控制器AppDelegate？

我混淆了iOS和OSX的做法吗？

我有一个视图控制器,它有一个UINavigationController和一个UITabController附加.

我想知道是否有办法获得可用的屏幕空间？我真的很想说CGPoint(0,0);是肯定在左下角,就在我的下方UINavigationController,这self.view.frame.size.height只是我留下的空间.

我试过: self.view.bounds和self.view.frame,但都认为可用空间是320x460,而不是320x367我所期待.

除了对数字进行硬编码外,最正确的方法是什么？

我能够实现SKAnnotation在skmaps 现在设置单个注释我只想在skmaps地图android中添加多个注释
所以这里是代码片段..任何帮助将不胜感激....

SKAnnotation annotation1 = new SKAnnotation(10);
// set annotation location
annotation1.setLocation(new SKCoordinate(-122.4200, 37.7765));
// set minimum zoom level at which the annotation should be visible
annotation1.setMininumZoomLevel(5);
// set the annotation's type
annotation1.setAnnotationType(SKAnnotation.SK_ANNOTATION_TYPE_RED);
// render annotation on map
mapView.addAnnotation(annotation1, SKAnimationSettings.ANIMATION_NONE);

我到处寻找,并没有得到任何有用的如何实现这.....

我在互联网上搜索了很多关于如何在 Java 中获取当前时间的信息，但我正在寻找的是如何获取当前时间 + n 个月？