Red highlight means Cannot resolve symbol 'Theme'
Here are some configurations :
styles.xml
<style name="AppBaseTheme" parent="Theme.AppCompat.Light">
<!--
Theme customizations available in newer API levels can go in
res/values-vXX/styles.xml, while customizations related to
backward-compatibility can go here.
-->
<item name="android:windowNoTitle">true</item>
</style>
<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
<item name="android:windowNoTitle">true</item>
</style>
.
AndroidManifest.xml
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="19" />
...
android:theme="@style/AppTheme">
.
build.gradle
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:19.0.0'
}
...
android {
compileSdkVersion 19
buildToolsVersion '20.0.0'
defaultConfig {
applicationId 'com.mobile.slider'
minSdkVersion 8
targetSdkVersion 19
.
MainActivity.java
public class MainActivity extends Activity {
It is working nice with my phone Nexus 4 whose android version is 4.4.4. Even though, There is no build problem, NoTitleWindow Mode doesn't work for
another phone which has 2.3.3 android version.
This is how I solved it:
.idea
directory caches
and libraries
directories Should be OK now.
I had added appcompatv7 project as a module but I have forgotten to show it to my application module. Just I have realized and fixed. Now it doesn't alert me anymore. Thanks for your reply, tritop.
It's very weird but I had the dependency in my .gradle.
To solve the issue I deleted it(//commented), sync, get all error because of it, put the dependency again, sync again. Then the problem was gone!
Error should be resolved now.
If that did not resolve, then try below
appcompact-v7
dependency line and sync. appcompact-v7
dependency and sync. Issue must be resolved!
Just delete the dependencies below and sync. Paste them again and sync.
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
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