android.support.v7.widget.GridLayout cannot get it to work

Question

I have an android project which utilizes GridLayout in most of its menus and screens. The problem however is that GridLayout is supported from API 14 and onwards.

Since I want to make the application available to older version of android as well, I tried to use Android's own Support Library GridLayout which adds support up to API 7. This was exactly what I was looking for, however I cannot for the life of me get it to work. I have tried all of these explanations and ideas:

and more...

No matter what I do, how I do it or what IDE I use (whether Eclipse ADT or Android Studio), it always gives me an error in the Layout XML along the lines of:

The following classes could be instantiated:  - android.support.v7.widget.GridLayout

With either one of these exceptions showing in the error log:

1. android.content.res.Resources$NotFoundException: Could not resolve value 0x7F080000
2. java.lang.classnotfoundexception: android.support.v7.gridlayout.R$dimen

Edit: For reference this is what I'm using to create the support gridlayout (taken directly from the android sample programs):

<android.support.v7.widget.GridLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/blue"
    android:padding="10dip"
    app:columnCount="4"
    >
    <TextView
        android:text="@string/string_test"
    />
    <EditText
        app:layout_gravity="fill_horizontal"
        app:layout_column="0"
        app:layout_columnSpan="4"
    />
    <Button
        android:text="@string/button_test"
        app:layout_column="2"
    />
</android.support.v7.widget.GridLayout>

What could I possibly be doing wrong that none of the above solutions work? Is there something I'm missing, maybe there's a problem with my original code?

Any help is appreciated

@nsvir - added my XML code, though nothing special about it, I used the sample code given by android — user475680, Aug 29 '13 at 09:11

IgorGanapolsky · Answer 1 · 2019-06-07T14:27:32.193

52

Try using Gradle, and in your build.gradle file add the following section at the end:

dependencies {
  implementation 'com.android.support:gridlayout-v7:28.0.0'
  implementation 'com.android.support:appcompat-v7:28.0.0'
}

Then execute assembleDebug gradle task.

edited Jun 07 '19 at 14:27

answered Dec 27 '13 at 15:34

IgorGanapolsky

26,189
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1

This should be the accepted answer. Importing v24 appcompat and later in ADT (Eclipse) will not work. Build tools are not storing ADT-compatible libraries anymore, and extracting from .aar is too much work - consider moving to Android Studio and Gradle-based build system. – milosmns Sep 16 '16 at 15:02
1

With Android Studio 3.0 on wards, instead of `compile` use `implementation` – Sisir Jun 07 '19 at 10:41

score 4 · Answer 2 · edited May 23 '17 at 12:10

4

With Android Studio:

Go in the build.gradle and add:
```
compile 'com.android.support:appcompat-v7:18.0.+'
```
in your dependencies.
Sync your project by clicking the icon on the left of AVD manager. It will implement the library
And try again

With Eclipse try this: Gridview v7 support for older api android.support.v7.widget.Gridlayout failed to instaniate

edited May 23 '17 at 12:10

Community

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1

answered Aug 29 '13 at 08:52

nsvir

8,781
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The code I'm using is running without gradle (while trying to create one via eclipse it shows an error and doesn't do anything), I saw this solution but since I'm not using gradle it's not viable – user475680 Aug 29 '13 at 09:01
Did you restart your IDE ? – nsvir Aug 29 '13 at 09:12
Yes, multiple times. Tried creating numerous new projects just to test but nothing works – user475680 Aug 29 '13 at 09:13
Well I tried on Android Studio and Eclipse by importing appcompat and/or gridlayout and It doesn't work for me neither.. Sorry – nsvir Aug 29 '13 at 09:43
Thanks anyway, appreciate your help. – user475680 Aug 29 '13 at 10:25

score 3 · Answer 3 · answered Feb 19 '20 at 06:20

3

For current stable Release 1.0.0 : To add a dependency on GridLayout, you must add the Google Maven repository to your project. Add the dependencies for the artifacts you need in the build.gradle file for your app or module:

dependencies {
    implementation "androidx.gridlayout:gridlayout:1.0.0"
}

answered Feb 19 '20 at 06:20

Kajal Chopkar

31
2

this is buggy, causing me lot of issues :\.gradle\caches\transforms-2\files-2.1\834d222cdf56ff4579f6f997b4d0229f\gridlayout-1.0.0\res\values\values.xml:3:5-73:25: AAPT: error: resource previously defined here. – joghm Jun 22 '20 at 20:45

score 2 · Answer 4 · answered Jan 09 '14 at 00:45

2

Refer from http://developer.android.com/tools/support-library/features.html#v7-gridlayout, you should import gridlayout as a eclipse project, then add it as an library project into your project, make sure the build path has included the jar.

answered Jan 09 '14 at 00:45

user3175615

21
1

score 1 · Answer 5 · answered Mar 31 '14 at 17:09

1

In my case I fixed it setting:

<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" />

in the gridlayout_v7 project manifest file.

answered Mar 31 '14 at 17:09

Ton

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android.support.v7.widget.GridLayout cannot get it to work

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