问题
I want to use Grid Layout, but get the following error:
Error: No resource identifier found for attribute 'columnCount' in package 'android'
Is this because my API level is 9?
Does Grid Layout REALLY need API level 14? (I use Version: 8.0.1.v201012062107-82219)
- If yes, what should I do? Please explain this step by step.
- If no, so what's the reason? I'm doing exactly the same as the example!
回答1:
Here are the steps i spent to solve my problem:
To use GridLayout, i figured out many things should be upgraded.
- i had "jdk 7" installed on my system, so didn't need to upgrade it.
- i downloaded "installer_r20-windows.exe" and ran it.
- i downloaded "platforms" which contains "android-14", and copied it into android-sdk folder. (mine is: C:\ Android\android-sdk)
- i downloaded "system images" which contains "armeabi-v7a", and copied it into my sdk folder.
- i downloaded "platform-tools_r13-windows" and copied it into SDK folder.
- Then i found out also my eclipse is old, thus downloaded it's latest version, "eclipse 4.2_juno" (27 june 2012)
- i downloaded "Eclipse-plugins-ADT-20.0.zip". Then into eclipse: Help > Install New Software > Add > Archive > Eclipse-plugins-ADT-20.0.zip. Then select "Developer Tools" > click next > accept > click finish > restart eclipse.
- Again in eclipse: Window> Preferences > Android > SDK Location: path where my android-sdk folder exists.(e.g. mine is "C:\Android\android-sdk") > Apply > select "Android 4.0" > click OK.
- Then i created new AVD, from: eclipse > Window > AVD Manager > New..
- Finally, into sdk folder i created a new folder named "extras", into it another new folder named "android", into it another new folder named "support".
- Then i extracted content of "support_r09.zip" (which have downloaded it).
Now everything is ok..
Thanks to everybody helped me in this post (viperbone, Doomsknight, Matthieu, MemLeak,Jeroen).
回答2:
GridLayout needs API 14
You can create a Layout for the other android versions -> Adapt layout to Android platform or API level
回答3:
Yes, the GridLayout is only available if you run it on devices with API Level 14 or higher.
Not sure what that version 8.0.1.... is ? Definitely not the Android version.
If you plan to run your application on anything earlier than Ice Cream Sandwich I am afraid you have to use something else than that Layout. TableLayout maybe ? Or check this question
MORE (from comments):
Either you are ok with your app to run only on ICS or above (so somebody with a phone with Gingerbread will not be able to run it for example).
If yes, then:
- Download the latest Android SDK
- Set targetSDKversion="14" in your manifest
And this error should go away.
If no, then you CANNOT use GridLayout. You have a few options to replace it:
- Download the library from : https://github.com/dlew/android-gridlayout and use that
- Use some other layout (like TableLayout or LinearLayouts)
回答4:
In your manifest use:
<uses-sdk minSdkVersion="14" />
However, this will mean that any device running an Android API below 14 will not be able to use your app
来源：https://stackoverflow.com/questions/12532542/grid-layout-api-level