Recently I upgraded my nexus 5 to Lollipop. and I create an app using AppCompat-21. The styles under values-v21 are as follo
<resources>
<style name="AppTheme" parent="android:Theme.Material.Light">
</style>
</resources>
but when I run the app, it crashes with the information:
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
here is my build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion "21.1.1"
defaultConfig {
applicationId "geone.businspector"
minSdkVersion 11
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.0'
}
It runs great under the device pre-Lollipop...
I googled a lot and had no good solution. anybody met this before? ps: I'm using Android Studio 0.8.14 and I'm new to Android Studio. thx.
The error clearly states that you're using the wrong theme. The activities you're using are from the android.support package, these activities need a ThemeCompat theme, not the Theme.Material.Light, which is for activities in android.app package. Rewrite your theme like so:
<resources>
<style name="AppTheme" parent="Theme.AppCompat">
</style>
</resources>
And this error will be gone.
Under your values/styles.xml you would be using Theme.AppCompat.Light
Use the SAME parent theme for your values-v21/styles.xml as well. This will get rid of the error as it did for me.
On Lollipop devices the theme works like it actually should so no worries :)
So I had the same issue and I got soooo tired of Googling it and seeing persons say not to use the Material Theme. Not using Material Theme changes the actionbar to gray even when you set a color for it in styles.
Anyway, the fix is that the android templates created by android studio use import android.support.v7.app.ActionBarActivity; instead of import android.app.Activity; and extend ActionBarActivity instead of activity for the main class. Just change the main class to extend an Activity instead of an ActionBarActivity. Of course more changes will have to be made if you are not using a Blank activity.
Related
I can not sync my gradle project. Every time I sync, it shows an error:
Error:(11) Tag <style> can not appear inside <style>, only <item>
When I edit value.xml & value-v21.xml or remove <style> , it will reappear.
How to solve the problem?
build gradle app:
compileSdkVersion 28
buildToolsVersion "28.0.3"
defaultConfig {
applicationId "ir.bijac.com.bijac"
minSdkVersion 14
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
And dependencies:
compile 'com.android.support:appcompat-v7:28.0.0'
compile 'com.android.support:design:28.0.0'
Try deleting the value-v21.xml and if tag is still nested in value.xml , edit it.
Hope this helps
Put MyCheckbox style to outside of AppTheme.NoActionBar
The error is very clear you can't do this
<stle><style> </style></style>
instead what you can do is
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="MyTheme" parent="android:Theme">
<item name="android:textViewStyle">#style/MyTextViewStyle</item>
</style>
<style name="MyTextViewStyle" parent="android:Widget.TextView">
<item name="android:textColor">#F00</item>
<item name="android:textStyle">bold</item>
</style>
</resources>
Hope this will help you
Remove the MyCheckBox style from inside of AppTheme.NoActionBar style.
Tag <style> can not appear inside <style>, only <item>
It's says that a style can not contain another style inside, just an item, so removing MyCheckBox style outside it should work.
Make sure your layout.xml only contains one style inside a component, for instance :
<Checkbox>
...
...
style=#style/MyCheckBox
</Checkbox>
Oh, I see you can edit so, please try first :
File/Invalidate Caches/Restart
if it does not work, make sure you can scroll up and down in your styles, then you can edit it.
Also make sure you are not editing the files that Android studio are generating automatically make sure you are editing this :
app->src->main->res->values
I've started a new project in Android Studio and configured my gradle build settings. When I add an android.support.v7.widget.Toolbar to a layout, I get the following error when in design view. Keep note that this error only shows up when previewing with an API less than 21 (specifically APIs 16 - 19). Everything works fine when I preview with API 21 - 24.
I have looked at a number of solutions and tried them, but none have solved the issue. One thing I tried doing was adding this to my gradle:
vectorDrawables.useSupportLibrary = true
But that didn't solve the issue. I tried configuring my compiledSdkVersion to 23, buildToolsVersion to 23.0.3. This did not change anything. If I change the support library versions to 23.4.0 or below, then the issue is resolved. As soon as I change it back up to 24.0.0 or higher then it returns.
Clearing the cache, cleaning the project and rebuilding, and invalidating the cache and restarting did not solve the issue.
The following classes could not be instantiated:
- android.support.v7.widget.Toolbar (Open Class, Show Exception, Clear Cache)
Tip: Use View.isInEditMode() in your custom views to skip code or show sample data when in the IDE
Exception Details
java.lang.IllegalStateException: This app has been built with an incorrect configuration.
Please configure your build for VectorDrawableCompat.
at android.support.v7.widget.AppCompatDrawableManager.checkVectorDrawableSetup(AppCompatDrawableManager.java:692)
at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:186)
at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:181)
at android.support.v7.widget.TintTypedArray.getDrawable(TintTypedArray.java:67)
at android.support.v7.widget.Toolbar.<init>(Toolbar.java:298)
at android.support.v7.widget.Toolbar.<init>(Toolbar.java:229)
...
invalid drawable tag vector
Here is my app build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.1" // https://developer.android.com/studio/releases/build-tools.html
defaultConfig {
applicationId "org.path.path"
minSdkVersion 16
targetSdkVersion 23
versionCode 0
versionName "0.0.0"
vectorDrawables.useSupportLibrary = true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
ext {
supportLibVersion = '24.0.0' // https://developer.android.com/topic/libraries/support-library/revisions.html
}
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile "com.android.support:appcompat-v7:${supportLibVersion}"
compile "com.android.support:design:${supportLibVersion}"
compile "com.android.support:cardview-v7:${supportLibVersion}"
compile "com.android.support:recyclerview-v7:${supportLibVersion}"
}
My project build.gradle is using classpath 'com.android.tools.build:gradle:2.1.2'
This is the toolbar xml:
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar_main"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:minHeight="?attr/actionBarSize"
android:elevation="4dp"
android:background="#color/colorPrimary"
app:theme="#style/ActionBarThemeOverlay"
app:popupTheme="#style/ActionBarPopupThemeOverlay"/>
And finally, my styles.xml:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
<!-- ActionBar -->
<style name="ActionBarPopupThemeOverlay" parent="ThemeOverlay.AppCompat.Dark" />
<style name="ActionBarThemeOverlay" parent="ThemeOverlay.AppCompat.Dark">
<item name="android:textColorPrimary">#color/text_on_primary</item>
<item name="android:textColorSecondary">#color/subtitle_on_primary</item>
</style>
Is this a bug, or am I just not able to use the support library versions 24 or higher? I'm not aware of any other configurations to change as the exception tried to direct.
Check this issue:
appcompat-v7 24.0.0 is incompatible with rasterized vectors
Make sure you are using gradle version greater than 2.0
buildscript {
...
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
}
}
I am developing an app with minSdkVersion 11, targetSdkVersion 23 and compile/build tool version 23. On android versions, 5 and 6 my app works fine, but installing the app on versions below 22 modifies some layouts, like buttons and text fields disappear or color changes, help me with this.
Manifest File
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.khan.bilal.salamrides2">
<application
android:allowBackup="true"
android:icon="#mipmap/cc"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
Styles file
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="android:windowNoTitle">true</item>
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
<style name="AppTheme.AppBarOverlay"
parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay"
parent="ThemeOverlay.AppCompat.Light" />
</resources>
Build Gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "com.khan.bilal.salamrides2"
minSdkVersion 11
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.android.support:support-v4:23.4.0'
}
Screen Shot of android version 22(Works fine)
Screen Shot of android version below 22(problem occurs)
When you use an element that was introduced in API 21, and you try to show it on a phone with API 11, there surely will be a problem. For the older versions, you have to differentiate between the elements that you are showing - if some element is not meant to be used in API lower than 21, then you have to provide if-else check and if the API is lower than 21, then use some simple element that you are sure was supported even in API 11.
For example, if you want to use TextInputLayout, you surely can, as the library supports API 22+, but for the lower versions you should probably input text by adding classic EditText. You add both of them to your XML, hide them, and then based on user's API you show one or other.
Also, read this document.
https://developer.android.com/training/basics/supporting-devices/platforms.html
Especially this should help you get an idea what and how to do it:
private void setUpActionBar() {
// Make sure we're running on Honeycomb or higher to use ActionBar APIs
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
}
}
Good luck :)
when i create a new project in android studio i find the the activity class initially extends AppCompatActivity and i have to change it to extend
Activity instead.
but the issue that i am facing is, R class is not recognisable and i receive the error "Cant resolve symbol R". i posted the build.gradle
file below and it seems to me it has no errors.
also, after tryin to find out the solution, i checked all the xml files and i found that the style.xml "posted below" has error at "Theme.AppCompat.Light.DarkActionBar"
and android studio cant resolve it.
please let me know how to fix this error.
code:
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.xxx.xxx);//cant resolve symbol R
}
}
style.xml:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">//cant resolve symbol Theme+cant resolve symbol AppCompat
<!-- Customize your theme here. -->
</style>
</resources>
gradle.build:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "com.example.com.bt_11"
minSdkVersion 19
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.+'
}
You will have to change the theme to Holo Light or Holo Dark or Material theme as pasted below;
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="#android:style/Theme.Holo.Light.DarkActionBar">
<!-- Customize your theme here. -->
</style>
</resources>
I recently created a new project with minSdkVersion 15, compiled and targetedSdkVersion 21, along with a couple of activities. I would like to use the default holo dark theme for my app and according to the documentation I just need to use Theme.AppCompat. When I test this on my personal phone (running 4.4.2), I get the dark holo theme and what I expect. However, when I run the latest nexus emulator with Lollipop, the theme and the controls look completely different. For example, the switch in Lollipop shows up just as a slider, without the text specified for the on/off states.
Is there a way for me to keep a consistent look and feel (of how it looks like on my phone) without having to worry about the app completely looking different on newer devices?
Edit:
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat">
<!-- Customize your theme here. -->
</style>
<style name="AppThemeDialog" parent="Theme.AppCompat.Dialog">
<!-- Customize your theme here. -->
</style>
</resources>
Settings:
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
applicationId "placeholder"
minSdkVersion 15
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
}
Pics:
Lollipop/Emulator version: http://i.stack.imgur.com/u8QhX.png
Kitkat/Phone version: http://i.stack.imgur.com/u8QhX.png
Many widget UIs have been updated to the new 'Material Design' look and feel with latest version of appcompat-v7, on purpose. So if you really want to resist the trend, you will have to manually override your widget UIs with your own background.