English 中文(简体)
Android- 图像视图未显示
原标题:Android- ImageView not showing

我有这个密码:

<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout02"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >   


 <ImageView  android:id="@+id/terranlogo1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:src="@drawable/terranlogo"
    android:layout_centerHorizontal="true"
    />

 <ImageView  android:id="@+id/protosslogo1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:gravity="top|right"
    android:src="@drawable/protosslogo"
    />

 <ImageView  android:id="@+id/zergologo1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:gravity="top|left" 
    android:src="@drawable/zerglogo"
    />

右侧的图像视图没有显示。 其它的2个是正常的, 我甚至尝试设置为50 dp, “ protosslogo1” 仍然没有显示。 我做错了什么?

感谢大家的帮助 感激不尽 Lijap

最佳回答

您的 image 视图 这样的位置 :

<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout02"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >   


 <ImageView  android:id="@+id/terranlogo1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:src="@drawable/terranlogo"
    android:layout_centerHorizontal="true"
    />

 <ImageView  android:id="@+id/protosslogo1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:layout_alignParentRight="true"
    android:src="@drawable/protosslogo"
    />

 <ImageView  android:id="@+id/zergologo1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:layout_alignParentLeft="true" 
    android:src="@drawable/zerglogo"
    />

现在 protoslogo1 > zergologo1> 后面。 您重新使用 and midal: 重力 , 用于将您 < code> ImageView 的内容( 以及您 < code> ImageView 的大小) 固定下来, 这样它并不重要 。 其次, 您在您的 < code> Image View 上方没有设置任何规则 。 您没有在 < code> Image View 上方框中设置任何规则, 因此默认地( 在 < code> realativeLayoot 中) 将其放置在左上角角 。

问题回答

您可以使用:

android:background="@drawable/terranlogo"

取代:

android:src="@drawable/terranlogo"




相关问题
Android - ListView fling gesture triggers context menu

I m relatively new to Android development. I m developing an app with a ListView. I ve followed the info in #1338475 and have my app recognizing the fling gesture, but after the gesture is complete, ...

AsyncTask and error handling on Android

I m converting my code from using Handler to AsyncTask. The latter is great at what it does - asynchronous updates and handling of results in the main UI thread. What s unclear to me is how to handle ...

Android intent filter for a particular file extension?

I want to be able to download a file with a particular extension from the net, and have it passed to my application to deal with it, but I haven t been able to figure out the intent filter. The ...

Android & Web: What is the equivalent style for the web?

I am quite impressed by the workflow I follow when developing Android applications: Define a layout in an xml file and then write all the code in a code-behind style. Is there an equivalent style for ...

TiledLayer equivalent in Android [duplicate]

To draw landscapes, backgrounds with patterns etc, we used TiledLayer in J2ME. Is there an android counterpart for that. Does android provide an option to set such tiled patterns in the layout XML?

Using Repo with Msysgit

When following the Android Open Source Project instructions on installing repo for use with Git, after running the repo init command, I run into this error: /c/Users/Andrew Rabon/bin/repo: line ...

Android "single top" launch mode and onNewIntent method

I read in the Android documentation that by setting my Activity s launchMode property to singleTop OR by adding the FLAG_ACTIVITY_SINGLE_TOP flag to my Intent, that calling startActivity(intent) would ...

From Web Development to Android Development

I have pretty good skills in PHP , Mysql and Javascript for a junior developer. If I wanted to try my hand as Android Development do you think I might find it tough ? Also what new languages would I ...

热门标签