android-studio

问题 This: @Nullable Item[] mItems; public Item getItem(int position) { return mItems[position]; } produces the warning: Array access 'mItems[position]' may produce NullPointerException I want to suppress this warning (I know that getItem() will not be called if mItems is null). I've tried using the following annotations: @SuppressWarnings({"NullableProblems"}) @SuppressWarnings({"null"}) as well as with the //noinspection notation, but they're all not working. Using @SuppressWarnings({"all"})

问题 This: @Nullable Item[] mItems; public Item getItem(int position) { return mItems[position]; } produces the warning: Array access 'mItems[position]' may produce NullPointerException I want to suppress this warning (I know that getItem() will not be called if mItems is null). I've tried using the following annotations: @SuppressWarnings({"NullableProblems"}) @SuppressWarnings({"null"}) as well as with the //noinspection notation, but they're all not working. Using @SuppressWarnings({"all"})

问题 I am seeing debug statements in the console but the debugger does not stop on any breakpoints. I tried clearing all breakpoints and adding them back in. Not sure how this can happen but it is. 回答1: Have you set the debuggable flag in the AndroidManifest? If you miss that, do so by adding android:debuggable="true" in the application tag. It should look like that in the end: <application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true"> 回答2: If you use

问题 I am working on a project and it requires to fill the image. means i want to use the image shape as a progress bar. I don't get any idea of how to use custom progress-bar. here is an image and its an image-button. So this is when progress is 100%: and this for 0% progress: 回答1: You need to learn about drawable resources. Drawable Resources | Android Developers You can do this with a Layer List and a Clip Drawable. First, let's talk about level. Every drawable has a level that goes from 0 to

问题 I am working on a project and it requires to fill the image. means i want to use the image shape as a progress bar. I don't get any idea of how to use custom progress-bar. here is an image and its an image-button. So this is when progress is 100%: and this for 0% progress: 回答1: You need to learn about drawable resources. Drawable Resources | Android Developers You can do this with a Layer List and a Clip Drawable. First, let's talk about level. Every drawable has a level that goes from 0 to

问题 Android Studio 2.3 --> Configure -> SDK Manager. These tabs are grayed out: SDK Tools, SDK Update Sites. Also, checkbox "Show Package Details" is grayed. The system updates normally. There are no error messages. I think this happened at some point with Studio 2.2. But the standalone SDK manager, which has been deprecated with 2.3, always worked. With 2.3, I can update what is there, but I cannot install/delete packages. I reviewed some of the previous reports of similar errors. I have tried:

问题 I am getting an issue where android studio is saying Installation failed since the device has an application with the same package but a different signature. . . .. This is correct, as I recently signed an APK and uploaded to the beta area of my play developer console. And now I am trying to debug it locally and by default I believe that all Android projects are signed by the debug keystore hence the signatures would be different. What is the best way to deal with this? Would it be possible

问题 It looks like I'm flirting with the dex limit of 65K, if I write some new methods I have a dex error, if I remove some older things, it's gone. Is there a way to check how many methods you are using at the moment in Android Studio? 回答1: Android Studio provides a built in way to do this. Change to the 'Project' view, navigate to /app/build/outputs/apk/ path to flavor/type apk . Double click on the APK. This will launch the apk in the editor where you can see the various libraries and their

问题 I can successfully set up Transfuse in my android project but when it comes to running the app using Android Studio, it fails. Probably because the Manifest xml has to be empty for Transfuse to take care of. Has anyone ever got these working together? 回答1: Transfuse and Android Studio work remarkably well together. The trick is to get Transfuse integrated with Gradle. Once you get Gradle working, the build will just kick off the annotation processor and run Transfuse. I've put together an

问题 I've just setup my first Cordova project and installed OneSignal push notifications. This is all working as I expect, however the Android Developer Tools are showing this in the console: W/art: Attempt to remove non-JNI local reference, dumping thread W/art: Attempt to remove non-JNI local reference, dumping thread W/art: Attempt to remove non-JNI local reference, dumping thread W/art: Attempt to remove non-JNI local reference, dumping thread W/art: Attempt to remove non-JNI local reference,