当我从表中删除行时,我的应用程序崩溃了.以下是检测到错误和堆栈跟踪的源代码.感谢名单!
//delete row from database
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(@"\ncommitEditingStyle");
//delete user from Users table with specified ID
if(editingStyle == UITableViewCellEditingStyleDelete)
{
//Get the object to delete from the array.
[dbManager open: @DB_FILE_NAME];
//get userID from array usersIDList[row] = userID!
NSNumber *usersID = [usersIDList objectAtIndex: [indexPath row]];
[dbManager deleteUserWithID: [usersID intValue] table: @TABLE_USERS fieldName: @"UserID" ];
[dbManager close];
//Delete the object from the table.
[self.tableView deleteRowsAtIndexPaths:
[NSArray arrayWithObject: indexPath]
withRowAnimation: UITableViewRowAnimationFade];
}
}
- (void)deleteRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation …Run Code Online (Sandbox Code Playgroud) 我正在使用In App Purchase.我正试图从AppleStore获取所有交易.请求后,我收到一个错误代码:
请求错误错误Domain = SKErrorDomain Code = 0"无法完成操作.(SKErrorDomain错误0.)"
[[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
Run Code Online (Sandbox Code Playgroud)
我甚至没有输入我的用户凭据.怎么解决?什么问题?有人知道吗?PS:我在iPad和iPhone设备上测试它 - 而不是模拟器.感谢名单!

我需要计算线之间的角度.我需要计算atan.所以我正在使用这样的代码
static inline CGFloat angleBetweenLinesInRadians2(CGPoint line1Start, CGPoint line1End)
{
CGFloat dx = 0, dy = 0;
dx = line1End.x - line1Start.x;
dy = line1End.y - line1Start.y;
NSLog(@"\ndx = %f\ndy = %f", dx, dy);
CGFloat rads = fabs(atan2(dy, dx));
return rads;
}
Run Code Online (Sandbox Code Playgroud)
但是我不能超过180度((在179度之后178-160 ...... 150等等).
我需要旋转360度.我该怎么做?怎么了?
maby这有助于:
//Tells the receiver when one or more fingers associated with an event move within a view or window.
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
NSArray *Touches = [touches allObjects];
UITouch *first = [Touches objectAtIndex:0]; …Run Code Online (Sandbox Code Playgroud) 我想创建一个自定义的TableViewCell,我想让UITextField具有编辑可能性.所以我用xib创建了新类.添加TableViewCell元素.在它上面拖动UITextField.在我班上添加了插座并将它们连接在一起.在我的TableView方法cellForRowAtIndexPath中,我创建了自定义单元格,但它们不是我的自定义单元格 - 它们只是常用的单元格.我该如何解决这个问题,为什么会这样?感谢名单!
// EditCell.H
#import <UIKit/UIKit.h>
@interface EditCell : UITableViewCell
{
IBOutlet UITextField *editRow;
}
@property (nonatomic, retain) IBOutlet UITextField *editRow;
@end
Run Code Online (Sandbox Code Playgroud)
//EditCell.m
#import "EditCell.h"
@implementation EditCell
@synthesize editRow;
#pragma mark -
#pragma mark View lifecycle
- (void)viewDidUnload
{
// Relinquish ownership of anything that can be recreated in viewDidLoad or on demand.
// For example: self.myOutlet = nil;
self.editRow = nil;
}
@end
Run Code Online (Sandbox Code Playgroud)
//在我的代码中
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"EditCell";
EditCell *cell …Run Code Online (Sandbox Code Playgroud) 我需要比按钮点击打开iPhone的默认相册,我可以选择一张照片.
我读了很多关于这个,但仍然没有用.我做以下事情:
- (IBAction) btnOpenAlbum
{
album = [[UIImagePickerController alloc] init];
album.delegate = self;
album.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController: album animated:YES];
}
Run Code Online (Sandbox Code Playgroud)
我也尝试了UIImagePickerControllerSourceTypePhotoAlbum,但在相册中仍然没有照片.
AI以这样的方式解决了它:
之后一切正常,但是:当我尝试将项目直接复制到该文件夹,并给它们合适的名称时,iphone没有识别它们.而且,当我从该文件夹中删除它们并运行模拟器 - 模拟器上的照片,但在文件夹中它们不是.
它可以是什么?感谢名单.
我想将html格式的文本保存到数据库,但是当我这样做时,它不保存html符号,如</>'和其他这就是我从数据库中读取文章进行编辑的方式:
<p class="Title">??????????? ???????:</p>
<textarea name="EN" cols="90" rows="20" value="<?php echo htmlentities($articleArr['EN'], ENT_QUOTES, "UTF-8"); ?>" ></textarea>
Run Code Online (Sandbox Code Playgroud)
在此之后生成这样的html代码:
<p class="Title">??????????? ???????:</p>
<textarea name="EN" cols="90" rows="20" value="<p class='Title'> ?????? </p>" ></textarea>
Run Code Online (Sandbox Code Playgroud)
所以,我希望这个文本会出现在我的文本字段中,在这个页面的html代码中,但在文本区域中是没有的.
在数据库中我将其保存为:
<p class="Title"> Hello </p>
Run Code Online (Sandbox Code Playgroud)
那么我该怎么做呢:
请帮帮我,我怎么能正确保存这些文本,Thanx!
我想从.fla文件中提取SWF文件.我有一些脚本,但是当我把它们拉出来时 - 它们不起作用.我从编译器得到错误:
1046: Type was not found or was not a compile-time constant
**Warning** The linkage identifier 'scrollableContent' was already assigned to the symbol 'pop_ups/__pop_up_other_elements/scrollableContent', and cannot be assigned to the symbol 'pop_ups/__pop_up_other_elements/scrollable_game_content', since linkage identifiers must be unique.
Run Code Online (Sandbox Code Playgroud)
我谷歌那个错误,但没有找到任何适当的答案.我在这里看到了一些信息,但它对我没有帮助.http://curtismorley.com/20 7月6日/ 20 /闪光-CS3柔性-2- AS3-错误-1046 /
请告诉任何人产生此错误的问题是什么,我该如何解决?感谢名单!
最近我开始收到这样的崩溃。没有更新任何东西来添加吊带。有谁知道什么会导致这个问题?谢谢。
com.squareup.retrofit2:改造:
改造版本 = "2.6.1"; 改造转换器GsonVersion = "2.6.1"; 改造适配器RxJava2版本=“2.6.1”
Dns.java line 39
okhttp3.Dns$1.lookup
Fatal Exception: io.reactivex.exceptions.UndeliverableException
com.companyname.data.service.retrofit.exception.RetrofitException: Unable to resolve host "api.companyserver.com": No address associated with hostname
io.reactivex.plugins.RxJavaPlugins.onError (RxJavaPlugins.java:349)
io.reactivex.internal.operators.observable.ObservablePublish$PublishObserver.onError (ObservablePublish.java:187)
io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.checkTerminated (ObservableObserveOn.java:276)
io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal (ObservableObserveOn.java:172)
io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run (ObservableObserveOn.java:252)
io.reactivex.android.schedulers.HandlerScheduler$ScheduledRunnable.run (HandlerScheduler.java:109)
Caused by com.companyname.data.service.retrofit.exception.RetrofitException
Unable to resolve host "api.companyserver.com": No address associated with hostname
com.lampa.letyshops.data.service.retrofit.adapter.RxErrorHandlingCallAdapterFactory$Rx2CallAdapterWrapper.asRetrofitException (RxErrorHandlingCallAdapterFactory.java:75)
com.lampa.letyshops.data.service.retrofit.adapter.RxErrorHandlingCallAdapterFactory$Rx2CallAdapterWrapper.access$000 (RxErrorHandlingCallAdapterFactory.java:41)
com.lampa.letyshops.data.service.retrofit.adapter.RxErrorHandlingCallAdapterFactory$Rx2CallAdapterWrapper$1.apply (RxErrorHandlingCallAdapterFactory.java:62)
com.lampa.letyshops.data.service.retrofit.adapter.RxErrorHandlingCallAdapterFactory$Rx2CallAdapterWrapper$1.apply (RxErrorHandlingCallAdapterFactory.java:59)
io.reactivex.internal.operators.observable.ObservableOnErrorNext$OnErrorNextObserver.onError (ObservableOnErrorNext.java:91)
retrofit2.adapter.rxjava2.BodyObservable$BodyObserver.onError (BodyObservable.java:72)
retrofit2.adapter.rxjava2.CallExecuteObservable.subscribeActual (CallExecuteObservable.java:55)
io.reactivex.Observable.subscribe (Observable.java:10955)
retrofit2.adapter.rxjava2.BodyObservable.subscribeActual (BodyObservable.java:34)
io.reactivex.Observable.subscribe (Observable.java:10955)
io.reactivex.internal.operators.observable.ObservableOnErrorNext.subscribeActual (ObservableOnErrorNext.java:38)
io.reactivex.Observable.subscribe (Observable.java:10955)
io.reactivex.internal.operators.observable.ObservableMap.subscribeActual (ObservableMap.java:33)
io.reactivex.Observable.subscribe (Observable.java:10955) …Run Code Online (Sandbox Code Playgroud) 由于某些未知原因,MaterialDatePicker 在选择后返回不正确的日期。例如,用户位于墨西哥地区,时区为:America/Tijuana。当他在视觉表示中选择:2021-10-05时,在结果文本中我有-1天,2021-10-04。对于 RU 地区,一切正常。这是代码:
public void startDateSelectionPicker() {
try {
MaterialDatePicker<Long> picker = MaterialDatePicker.Builder.datePicker()
.setSelection(MaterialDatePicker.todayInUtcMilliseconds())
.setTheme(R.style.CustomDatePickerDialog)
.build();
picker.addOnPositiveButtonClickListener(selection -> {
TimeZone t = TimeZone.getDefault();
Calendar c1 = Calendar.getInstance();
c1.setTimeInMillis(selection);
c1.setTimeZone(TimeZone.getDefault());
//here I need to receive correct date, but receiving -1 from originally selected date.
String date = ToolsManager.calendarToDate(this, c1, "yyyy-MM-dd");
});
picker.show(getSupportFragmentManager(), picker.getTag());
} catch (IllegalArgumentException e) {
}
}
public static String calendarToDate(Context context, Calendar calendar, String dateFormat) {
if (calendar == null) {
return null;
}
Locale locale …Run Code Online (Sandbox Code Playgroud) timezone android android-calendar java-time materialdatepicker
android ×3
iphone ×3
uitableview ×2
app-store ×1
atan2 ×1
delete-row ×1
flash ×1
flash-cs5 ×1
html ×1
ios4 ×1
java-time ×1
objective-c ×1
php ×1
phpmyadmin ×1
retrofit2 ×1
searchview ×1
timezone ×1