小编Ren*_*ndy的帖子

我在哪里可以找到旋转轮的教程(不知道这是否是正确的术语)android？这个就像我在寻找的:

但我总是在搜索结果中提出这个问题:

有谁知道该group_skip怎么办？

也许它是一个基本的编程,但我已经使用Java编程了几年,今天才发现它.

group_skip: do {
    event = stepToNextEvent(FormController.STEP_OVER_GROUP);
    switch (event) {
        case FormEntryController.EVENT_QUESTION:
        case FormEntryController.EVENT_END_OF_FORM:
            break group_skip;
    }
} while (event != FormEntryController.EVENT_END_OF_FORM);

谢谢!

我有以下XML代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <LinearLayout
            android:id="@+id/viewGroup"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:animateLayoutChanges="true"
            android:orientation="vertical">

            <RelativeLayout
                android:id="@+id/textLayout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content" />
            </RelativeLayout>

            <ListView
                android:id="@+id/testList"
                android:layout_width="match_parent"
                android:layout_height="75dp"
                android:visibility="gone" />
        </LinearLayout>

        <RelativeLayout
            android:id="@+id/anotherLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <ListView
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <TextView
                android:id="@+id/messageText"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center" />
        </RelativeLayout>
    </LinearLayout>
</LinearLayout>

因此,当textLayout单击时,它将确定可见性testList.

当能见度变好时VISIBLE,效果很好.然而,当可见性变为时GONE,在结束anotherLayout动画之前返回到原始位置viewGroup,因此它重叠testList.

我怎么能阻止这个？

所以这是我的代码:

String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
      imageFileName,  /* prefix */
      ".jpg",         /* suffix */
      storageDir      /* directory */
);

但是,我的应用程序间歇性地抛出错误File.createTempFile:

java.io.IOException: open failed: ENOENT (No such file or directory).

来自以下文件File:

Parameters:
prefix the prefix to the temp file name.
suffix the suffix to the temp file name.
directory the location to which the temp file is to be written, …

我有以下代码:

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="1" >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Test 1"
        android:textSize="24sp" />
</LinearLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="1" >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Test 2"
        android:textSize="24sp" />
</LinearLayout>

结果:

如何将View的高度与其宽度(由此产生layout_weight)相等？

我有以下代码：

我的备份地点

public class MyBackupPlace extends BackupAgentHelper {
    static final String FILES_BACKUP_KEY = "myfiles";

    // Allocate a helper and add it to the backup agent
    @Override
    public void onCreate() {
        DbBackupHelper helper = new DbBackupHelper(this, DBHelper.DATABASE_NAME);
        addHelper(FILES_BACKUP_KEY, helper);
    }

    /**
     * We want to ensure that the UI is not trying to rewrite the data file
     * while we're reading it for backup, so we override this method to
     * supply the necessary locking.
     */
    @Override
    public void onBackup(ParcelFileDescriptor oldState, …

为什么我的NSDateFormatter返回null？这是我的代码:

  NSString *dateString = @"21-12-2012 11:05:15";
  NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  [dateFormatter setDateFormat:@"dd-MM-yyyy hh:mm:ss"];
  NSDate *dateFromString = [[NSDate alloc] init];
  dateFromString = [dateFormatter dateFromString:dateString];

  [dateFormatter setDateFormat:@"dd/MM/yyyy"];
  NSString *strDate = [dateFormatter stringFromDate:dateFromString];

我的strDate回报

21/12/2012

但当:

NSString *dateString = @"13-12-2012 13:17:58";

我的strDate回报null

这很奇怪,有谁经历过同样的事情？

我试图将其他html内容加载到我的div但是我发现我丢失了加载内容的样式.

我尝试使用以下代码:

.load():

$('#paymentsExecutiveExSum').load("summary/ExecutiveSummary/paymentsExecutiveSummary.html");

.get()&.append() ;

$.get("summary/ExecutiveSummary/paymentsExecutiveSummary.html",function(data){
    $("#paymentsExecutiveExSum").append(data);
});

我使用相同的代码:

<a data-role="button" class="fullWidth">Test</a>

来自Inspect Element的我的css :

加载(从其他html使用正常方式加载html)

没有加载(我的情况,基本上它没有加载JQM按钮的CSS)

更新:

这是我的完整代码:

home.html的

<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0" />
    <link rel="shortcut icon" href="images/favicon.png" />
    <link rel="apple-touch-icon" href="images/apple-touch-icon.png" />
    <link rel="stylesheet" href="css/my.css"/>
    <link rel="stylesheet" href="css/theme-addon.css"/>
    <link rel="stylesheet" href="js/jquery.mobile-1.3.1/jquery.mobile-1.3.1.css"/>

    <script src="js/jquery-1.9.1.min.js" type="text/javascript" charset="utf-8"></script>
    <script>
        var jq = jQuery.noConflict();
        var animation = "none";

        Number.prototype.formatMoney = function(c, d, t){
            var n = this, 
                c = …

如何设置用户在列表视图上滚动,列表视图外的其他div也不需要滚动？我无法在那里得到任何参考.

通常我可以用Objective-C中的代码替换我对splitview的详细视图:

  [self.splitViewController viewWillDisappear:YES];
  NSMutableArray *viewControllerArray=[[NSMutableArray alloc] initWithArray:[[self.splitViewController.viewControllers objectAtIndex:1] viewControllers]];
  [viewControllerArray removeLastObject];

  [viewControllerArray addObject:self.detailViewController];
  [[self.splitViewController.viewControllers objectAtIndex:1] setViewControllers:viewControllerArray animated:NO];
  [self.splitViewController viewWillAppear:YES];

尝试在Swift中重写它,但我甚至无法在此代码中获取viewControllers:

  NSMutableArray *viewControllerArray=[[NSMutableArray alloc] initWithArray:[[self.splitViewController.viewControllers objectAtIndex:1] viewControllers]];

迅速:

    let test: UIViewController = (self.splitViewController?.viewControllers[1])!

它应该有test.viewControllers,但它没有如下图所示

Swift是否以不同的方式处理splitview中的替换？