I'm building an Android App using Eclipse. I'm trying to create a simple image display when the application opens.
I've saved my intro_image.png on res\drawable-hdpi in my workspace, I've created another xml for the layout with the following code:
<?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"
android:orientation="vertical"
android:background="#drawable/intro_image">
</LinearLayout>
An error message appears when I view the result on the Graphical Layout, saying: "Failed to convert #drawable/into_image into a drawable. Couldn't resolve resource #drawable/intro_image"
How do I solve this?
Thank you.
try to refresh or clean your project. it will work.whenever you paste an image into drawable you have to refresh that folder.
Related
How do I insert a background image in an xml file? I would like to add a background image to my APK (for mobile phone), I have already found the xml file, but I don't know where to insert the ID of the image and also not whether android: background or android: icon Can someone help me? The XML is in the picture and btw sorry for the picture i dont know how to copy a xml code in the question
It's done with android:background="", like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/your_image_id">
</LinearLayout>
I have installed all sdk and correctly installed but I have tried multiple times but I cannot fine frame of app where I can insert tool,widgets, button, etc. (Cannot add anything on workspace)
My Android studio window image: https://drive.google.com/file/d/0B8AWJ5JO_e0xVV9KVEE0TUpMYWc/view?usp=drivesdk
Select devices，sdk and theme，like this
image： https://drive.google.com/open?id=0B7VdJKtF9NwGNVFKeE5zZ2pxVHM
Looks like you've gotten rid of the Component Tree.
Try go to the Text-tab and paste
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
or whatever root layout you need...
I have the following layout, each time I try to view it in the Graphical Layout it gives the error message below.
<?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"
android:orientation="vertical" >
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/my_greeting" />
</LinearLayout>
The error
The following classes could not be found:
- ImageView (Change to android.widget.ImageView, Fix Build Path, Edit XML)
close that file and reopen it. if wont solve the problem just clean and rebuild the project.
It's got to do something with your image source my_greeting. Check if the source name is right and check if you've given a valid extension. Also, try cleaning the project.
I am trying to add a background to my android project. Heres the code.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:backround="#drawable/awesome_face">
</RelativeLayout>
I spelled everything out correct but when i go into my graphical layout after saving and nothing shows up. Furthermore after i cleaned the project I now have an error on the
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
saying "no resource identifier found for attribute background in package 'android'" Anyone have ideas?
Just like ChristopheCVB said, your backgroud tag is missing a G.
android:backGround="#drawable/awesome_face">
I created two layout files.
Android XML Layout File which created this xml
<?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"
android:orientation="vertical" >
</LinearLayout>
and an Android XML File
<?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"
android:orientation="vertical" >
</LinearLayout>
From the looks of it they are both the same. When to use one over the other since they are both creating the same xml?
Yeah they are prograticaly the same, there isn't different type of xml. What matters, is the location of the xml (layout, values, ...).
In eclipse, there maybe is a small difference in the IDE view, i'm not sure that you have the Graphical Layout view if you create a Android XML file instead of a layout file (it's a detail because, you still can add this view ;) )
But results apk will be identical.
The reason why you would use an Android XML, is if you wanted to use the Layout Tool (the GUI layout editor). The Eclipse IDE will react to this file differently.
But, the code is the same, so the APK you create will also be the same - it doesn't matter in your final output.
I always use Android XML files, so they integrate into the ADT tools better.
the only difference as far as I can see is that in xml you can't use both "android:layout-width:" and "android:layout-height:" attributes which makes xml for example suitable for the use of menu and item bar and other uses.