android-studio

问题 I have an issue with R8. In MyLib I have public abstract MyLibsClass in which I have protected methods. MyChildClass extends from MyLibsClass in MyApp and after R8's magic all protected methods (including protected abstract) in MyLibsClass are changed into public ones, and of course in MyChildClass I'm getting "attempting to assign weaker access privileges ('protected'); was 'public') issue as trying to override protected abstract methods. Additional info gradle-6.0.1 MyLib's build.gradle

问题 I am trying to learn about data binding I have my CreditCardViewModel class which is bind in my fragment as follows public class CreditCardValidatorFragment extends Fragment { private CreditCardViewModel cardViewModel; private CcValidateFragmentBinding binding; @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { binding = DataBindingUtil.inflate(inflater, R.layout.cc_validate_fragment, container,

问题 I am trying to learn about data binding I have my CreditCardViewModel class which is bind in my fragment as follows public class CreditCardValidatorFragment extends Fragment { private CreditCardViewModel cardViewModel; private CcValidateFragmentBinding binding; @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { binding = DataBindingUtil.inflate(inflater, R.layout.cc_validate_fragment, container,

问题 in my app use want to put instagram profile pic in his account how can I get the Profile Picture of a user from Instagram Programmatically such as : 回答1: Using the Instagram API users endpoint ( https://api.instagram.com/v1/users/{user-id}/?access_token=ACCESS-TOKEN ) you will receive a response like this one: { "data": { "id": "1574083", "username": "snoopdogg", "full_name": "Snoop Dogg", "profile_picture": "http://distillery.s3.amazonaws.com/profiles/profile_1574083_75sq_1295469061.jpg",

问题 I am using android material icon plugin, nut in that no option for 'outlined icon', any options or any other plugin? Currently I am using - https://github.com/konifar/android-material-design-icon-generator-plugin 来源： https://stackoverflow.com/questions/55020817/how-to-add-outlined-material-icon-in-android-studio

问题 I am using Robolectric library and the latest version of it v4.3.1 requires Java 9 to run. I am trying to point JRE on edit configurations but I am not finding Java 9 in the drop-down even though I have already installed it. It would be really helpful if somebody can please explain! Please check Java 9 installed. 回答1: You can't use Java 9 , Android only supports till Java 8 . You should use the JDK version that comes with Android Studio, NO need for side alone JDK. The current JDK version is

问题 I am using Robolectric library and the latest version of it v4.3.1 requires Java 9 to run. I am trying to point JRE on edit configurations but I am not finding Java 9 in the drop-down even though I have already installed it. It would be really helpful if somebody can please explain! Please check Java 9 installed. 回答1: You can't use Java 9 , Android only supports till Java 8 . You should use the JDK version that comes with Android Studio, NO need for side alone JDK. The current JDK version is

问题 I'm attempting to add a pre-pre-build shell script to my gradle/Android-Studio build. I've added the following to app/build.gradle : task prePreBuild << { commandLine 'ls' } preBuild.dependsOn prePreBuild When I invoke my build with ./gradlew assembleDebug I get the following error: Could not find method commandLine() for arguments [ls] on project ':app' If I replace the commandLine line with something like println 'Hello' then it works fine, and I can see the output from my new task. I

问题 i'm using android studio 3.2 , and want to use SQLiteOpenHelper in my blank class . when i have run project java compiler return error : cannot find symbol class Nullable public class Db extends SQLiteOpenHelper { public Db(@androidx.annotation.Nullable Context context, @androidx.annotation.Nullable String name, @androidx.annotation.Nullable SQLiteDatabase.CursorFactory factory, int version) { super(context, name, factory, version); }} I also used this implementation implementation 'com

问题 I am trying to run a background service in an android application. I have tried the standard way of doing it and a lot of other tweaks. The problem is that when the application is closed from recent apps, the service gets killed. This only happens in Chinese Android devices like Oppo, Vivo, Xiomi, etc. It works fine on all other brands. I have tried the following solutions. Over-riding the OnStartCommand() of activity to return START_STICKY . This still not re-starts activity after the