我创建了一个自定义UITableViewCell,单元格有多个文本字段,现在我想访问这些字符串或数据UITextFields.我知道我可以打开单元格didSelectRowAtIndexPath,但我需要在"保存"方法上获取文本.
应用程序运行正常,但在Xcode 6上它的错误"方法声明缺少上下文"在下面的方法:
- (NSString *)encodeBase64:(const uint8_t *)input length:(NSInteger)length{
static char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];
uint8_t* output = (uint8_t*)data.mutableBytes;
for (NSInteger i = 0; i < length; i += 3) {
NSInteger value = 0;
for (NSInteger j = i; j < (i + 3); j++) {
value <<= 8;
if (j < length) {
value |= (0xFF & input[j]);
}
}
NSInteger index = (i / 3) * 4;
output[index …Incident Identifier: 59F8A919-279A-4C9E-9B58-FFFE9C01F9E9
CrashReporter Key: 73755578964009d66f989a2277500f68dc02d973
Hardware Model: iPod4,1
OS Version: iPhone OS 5.1.1 (9B206)
Kernel version: Darwin Kernel Version 11.0.0: Sun Apr 8 21:51:26 PDT 2012;
root:xnu-1878.11.10~1/RELEASE_ARM_S5L8930X
Date: 2013-02-12 11:47:12 +0500
Exception Code: 0xdeadfeed
Reason: Timeout waiting for service to spawn
Thermal Level: -1
Thermal Sensors: failed to load sensor values
Frontmost process PID: 7751
Frontmost process PID: 51
Jetsam Level: 28
Free Pages: 1642
Active Pages: 9820
Inactive Pages: 5087
Purgeable Pages: 4327
Wired Pages: 14299
Speculative Pages: …我刚看到代码,我无法理解逻辑和行为与"cout"在这里:
int userInput = 9; // Suppose user input is 9.
int remainder = 9 % 2;
(remainder & 1 && std::cout<<"odd" )|| cout<<"even";
Apache-Nifi v-1.7.1 在 AWS Centos 机器上运行良好，但现在在重新启动时抛出以下错误：（在 /nifi-app.log 的内容下方）
org.apache.nifi:nifi-standard-nar:1.7.1 || ./work/nar/extensions/nifi-standard-nar-1.7.1.nar-unpacked
org.apache.nifi.processors.standard.FetchSFTP
org.apache.nifi:nifi-standard-nar:1.7.1 || ./work/nar/extensions/nifi-standard-nar-1.7.1.nar-unpacked
org.apache.nifi.processors.azure.eventhub.ConsumeAzureEventHub
org.apache.nifi:nifi-azure-nar:1.7.1 || ./work/nar/extensions/nifi-azure-nar-1.7.1.nar-unpacked
=== End Processor types ===
2019-01-21 10:07:15,987 WARN [main] org.apache.nifi.web.server.JettyServer Failed to start web server... shutting down.
java.lang.NullPointerException: null
at org.apache.nifi.documentation.DocGenerator.generate(DocGenerator.java:62)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:835)
at org.apache.nifi.NiFi.<init>(NiFi.java:157)
at org.apache.nifi.NiFi.<init>(NiFi.java:71)
at org.apache.nifi.NiFi.main(NiFi.java:292)
2019-01-21 10:07:15,987 INFO [Thread-1] org.apache.nifi.NiFi Initiating shutdown of Jetty web server...
2019-01-21 10:07:15,988 INFO [Thread-1] org.apache.nifi.NiFi Jetty web server shutdown completed (nicely or otherwise).
以下代码中引发警告.使用ARC.
if ( aAnim ) {
[UIView beginAnimations:nil context:CFBridgingRetain([NSNumber numberWithInt:aOff])];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(postSpin:finished:toCCWCellOffset:)];
}
我是 ruby 新手，不知道是否可以在 ruby 中完成。
我们可以在 ruby 中为自定义类对象重载组合比较运算符 <=> 吗？
我正在尝试使用该方法获取图像视图
int mId = getResources().getIdentifier(s, "id",getPackageName());
ImageView img = (ImageView) findViewById( mId);
img.setImageResource(kBonusImage);
但是我的成绩是0.
这是我的xml布局: -
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="35dp"
android:shrinkColumns="*"
android:stretchColumns="*" >
<TableRow
android:id="@+id/trFirstRow"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/imgFirst"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:background="@drawable/cell_border"
android:gravity="center"
/>....