I'm working on an assignment for an online course on Udacity. The starter code can be found here.
The only thing I've done to the starter code was to add a new Activity with New > Activity > Basic Activity. I then got import errors in the two lines
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
Specifically, I get a Cannot resolve symbol 'FloatingActionButton' and same for Snackbar.
I've spent the past hour here (was having another problem before this one, also with import statements but in the MainActivity), and have tried the following:
Changing the appcompat on build.gradle file
File > Invalidate caches / restart
Build > Rebuild project
Sync project with Gradle files
Re-installing Android Studio
None of this worked.
The build.gradle file is
dependencies {
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:support-v4:23.3.0'
compile 'com.android.support:design:23.3.0'
}
I'm not really sure what started the error(s) to begin with since it's been a complete rabbit whole but I think it was after doing some update to Android Studio.
Can anyone please point me to the solution?
While adding dependencies, just use the same dependency version (which is available on local machine) across similar dependency packages so use
compile 'com.android.support:design:23.4.0'
instead of
compile 'com.android.support:design:23.3.0'
Note : I also recommend to work with latest dependencies and android studio which improved and thus more helpful (there's been some great improvement in latest android studio IDE to handle build errors)
Related
I am facing a issue after run existing android studio project. Please check error below and let me know how to resolve that.
Error:(54) Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
Thanks in advance
Try to use accroding gradle plugin. I've got the problem with plugin 2.3-beta1 and Studio 2.2.3, when changed to plugin 2.2.3 - everything worked like a charm
Please change compileSdkVersion and buildToolsVersion in your gradle file according to your android studio existing running project.
Our compile SDK version must match the support library's major
version.
If you are using version 23 of the support library, you need to compile against version 23 of the Android SDK.
Alternatively you can continue compiling against version 22 of the Android SDK by switching to the latest support library v22.
You can either change it manually in your build.gradle, or you can use
the GUI by opening up the project properties and going to the
"dependencies" tab.
Or Press Ctrl + Shift + Alt + S to get to the project structure page. Go to the properties tab and change version to 23.0.0 or whatever latest in the build tool area and rebuild your project.
If that doesn't work, go to gradle:app and then
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.1'
Edit version as shown above and sync gradle.
Ran into same issue as OP, March 2017 Android Studio 2.3.
My build was working fine for months, and this issue came up right after adding a new line to gradle build file. Ultimately making some changes in Gradle and re-sync'ing fixed the issue, but my Gradle ended up being exactly the same as when the issue first came up, strangely.
My original Gradle build dependencies:
compile 'com.android.support:design:25.1.1'
compile 'com.android.support:multidex:1.0.1'
compile 'com.android.support:support-v4:25.1.1'
compile 'com.android.support:appcompat-v7:25.1.1'
compile 'com.android.support:gridlayout-v7:25.1.1'
compile 'com.android.support:cardview-v7:25.1.1'
compile 'com.android.support:recyclerview-v7:25.1.1'
compile 'com.google.android.gms:play-services-location:10.0.0'
compile 'com.google.android.gms:play-services-maps:10.0.0'
compile 'com.google.maps.android:android-maps-utils:0.5'
compile 'com.android.volley:volley:1.0.0'
compile 'com.google.code.gson:gson:2.4'
Then, I simply added a new line:
compile 'org.scribe:scribe:1.3.5'
This is when the issue appeared, same as OP.
I saw red errors in my styles.xml and wondered "wtf?".
Cleaning and re-building had no affect.
Going back to the Gradle build file, I commented-out that new line. ISSUE RESOLVED! So obviously there was something going on.
For fun, I put that line, uncommented, at the top of this compile list. NO ISSUE!
For fun yet again, I put that line back again to the bottom of the list (like how originally added it). NO ISSUE.... weird!
How Gradle sync'ing responds doesn't seem to be 100% consistent. I did no other changes to my project. All I can say is try toggling and re-ordering things in the compile list.
I'm trying to import this as a library in a project I'm working on in Android Studio:
https://github.com/d4rken/myolib
I cant workout exactly how to do it. even before I try to do this, I tried to open the project using new->Import project-> (selecting the settings.gradle). This then complained about not knowing about:
classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.3.1'
classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
So I tried adding these manually using the advice on:
Importing github projects as library to existing project
Adding external library in Android studio
But its still complaining about no cached version for offline mode. If I do disable work in offline mode then, well it just sits there forever. I want to give it everything manually because in my experience disabling work in offine mode usually doesn't help.
I completely understand this isn't a new topic on Stackoverflow. The issue of how best to import libraries as .jar, .aar, .os etc. etc has been covered a few times. And yet most answers are subtly different and some work sometimes, others work other times.
Does anyone know of a detailed explanation about how I should achieve this ?
If anyone has been successful in importing this project and using its libraries I will be eternally grateful if you could tell me how you achieved such wizardry.
You import the library through your app's build.gradle file. An import section looks something like this:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:24.1.1'
compile "com.android.support:support-v13:24.1.1"
}
So to import the library you just linked, you would simply add this line to your dependencies section, as per the readme:
compile 'eu.darken.myolib:myolib:0.0.4'
I'm new to Gradle and I need to make sure that my Android project has the latest dependencies with regards to RxAndroid and RxJava. Forgive me for my ignorance but could someone explain how I go about to make sure that the libraries I include in my project are the latest ones? Where does Gradle downloads these libraries from? Is there a central repository? Is GitHub the source? It's not clear from the code shown below:
build.gradle
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'io.reactivex:rxandroid:1.0.1'
compile 'io.reactivex:rxjava:1.0.14'
}
I would really appreciate if someone could shed some light with regards to this topic.
Gradle downloads them from Maven or other repos. I don't believe GitHub hosts the libraries themselves, but the link to download the libraries could be found on GitHub.
To ensure they are the latest version, you will have to go the library's web page(Git hub page usually) and check if a latest version has been released.
If I am not wrong, you could add a + sign at the end and when you sync Gradle with work in offline mode turned off, it should fetch the latest version of the library.
Eg:
compile 'com.android.support:appcompat-v7:23.3.0+'
compile 'io.reactivex:rxandroid:1.0.1+'
The above line will ensure that 1.0.1 is the min version that you will download and if there are any higher version, it will download that instead.
WARNING : this is not a safe thing to do, because the latest version of library will be automatically downloaded and the changes in the newer version of the library might have breaking changes, and break your app. For instance the methods you use from a library might be removed in the new library or even worse things could happen and it has to me. I suggest you set some time apart once every few weeks and see if there are new updates and consider if it is safe to update.
Deciding to add a library to your project must be carefully thought through, as you are making the project dependent on it and if that library dies out or is buggy, your project too will be screwed. Incase you didn't, I suggest you read this on how being careless with adding dependencies literally broke the internet.
You can just add a plus to the end of each, although it's not recommended as sometimes new libs will break your code.
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.3.0+'
compile 'io.reactivex:rxandroid:1.0.1+'
compile 'io.reactivex:rxjava:1.0.14+'
}
Here are the latest:
dependencies {
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'io.reactivex:rxandroid:1.2.0' // Upgraded
compile 'io.reactivex:rxjava:1.1.5' // Upgraded
testCompile 'junit:junit:4.12'
}
check here
I'm trying to migrate an Android project developed with Eclipse ADT to Android Studio. I've already read the instructions mentioned here http://developer.android.com/sdk/installing/migrate.html and it works fine!
Gradle builds a new android project but I need to "hardcode"(modify manually) the gradle.build file in order to make the libraries work properly. All the other stuffs work fine.
This is the ADT project
MyApplication/
-->assets/
-->libs/
---->android-support-v7-appcompat.jar
---->android-support-design.jar
-->res/
-->src/
-->AndroidManifest.xml
-->project.properties
The first library is automatically recognized by Gradle, and it is substituted with
compile 'com.android.support:appcompat-v7:23.2.1'
in the grandle.build file.
Instead the "android-support-design.jar" is not recognized and it is added to the gradle.build as
compile file('libs/android-support-design.jar')
but it is not working at all.
At the moment, I need to manually substitute the
compile file('libs/android-support-design.jar')
with
compile 'com.android.support:design:23.2.1'
In order to make the build work effectively.
Is there any way to force Gradle to recognize that library and automatically import it? Can I download a version of that library that is recognized, anywhere? At the moment I'm taking both libraries from
<sdk>/extras/android/support/
Thank you all.
I need to "hardcode" the gradle.build file in order to make the libraries work properly
I'm not sure what you mean by "recognize" and "hardcode", but if you just have jar files that you can't use the compile line like for the support libraries, then you can use this line, which will take any jar file in the libs/ folder and compile it. You don't need to hard-code any of those.
compile fileTree(dir: 'libs', include: ['*.jar'])
Otherwise, you should already have these.
compile "com.android.support:appcompat-v7:23.2.1"
compile "com.android.support:design:23.2.1"
But, if you want to get fancy with Gradle, you can do something like this to keep all the support libraries the same version.
ext {
supportLibVersion = '23.2.1' // variable that can be referenced to keep support libs consistent
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile "com.android.support:appcompat-v7:${supportLibVersion}"
compile "com.android.support:design:${supportLibVersion}"
i created a fresh project in the Android studio and i would like to add this logging plugin.
https://github.com/orhanobut/logger
So i copied all into ProjectDirectory/app/build.gradle go get something like this.
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.1'
compile 'com.squareup.retrofit:retrofit:1.9.0'
compile 'com.orhanobut:logger:1.11'
compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
compile 'com.squareup.okhttp:okhttp:2.0.0'
}
But after the rebuild process Android studio is still import wrong class:
import java.util.logging.Logger;
So i think, that dependency was not imported correctly.
How can i do it it the right way please?
Well it worked in mine just fine,type Logger. and it will give a suggestion window with 2 types of logger like it always does when multiple import types are available and select the one which belong to your lib.
The line 'com.orhanobut:logger:1.11' assumes that you have declared a repository that hosts the artifact it identifies.
If you have declared a valid repository, you've most likely been tricked by auto-import. Remove the import and be sure to select the proper logger import when prompted.
If gradle build completed successfully without errors, then the import was completed correctly. However in your java classess, if you have 2 libraries with the same name (as in your case, there is 2 logger libraries) you can type logger then press ctrl + space to open a menu that lets you choose which logger library to use.