sendUserActionEvent() is null
I also encuntered the same in S4. I’ve tested the app in Galaxy Grand , HTC , Sony Experia but got only in s4. You can ignore it as its not related to your app.
android
android.widget.Switch – on/off event listener?
Switch inherits CompoundButton‘s attributes, so I would recommend the OnCheckedChangeListener
How to get text from EditText?
Well, it depends on your needs. Very often I keep my references to widgets in activity (as a class fields) – and set them in onCreate method. I think that is a good ideaProbably the reason for your nulls is that you are trying to call findViewById() before you set contentView() in your onCreate() method – please check that.
How to change spinner text size and text color?
Make a custom XML file for your spinner item. spinner_item.xml: Give your customized color and size to text in this file. Now use this file to show your spinner items like: You don’t need to set the drop down resource. It will take spinner_item.xml only to show your items in spinner.
adb devices return error: protocol fault (no status)
I had the same issue and found the problem: Android Studio. Open the Android Studio menu Tools -> Android and uncheck Enable ADB integration. adb devices should work (you might need adb kill-server first). Then you can re-enable ADB integration in Studio.
Android scale animation on view
Here is a code snip to do exactly that. The ScaleAnimation constructor used here takes 8 args, 4 related to handling the X-scale which we don’t care about (1f, 1f, … Animation.RELATIVE_TO_SELF, 0f, …). The other 4 args are for the Y-scaling we do care about. startScale, endScale – In your case, you’d use 0f, 0.6f. Animation.RELATIVE_TO_SELF, 1f – … Read more
What is android:ems attribute in Edit Text? [duplicate]
Taken from: http://www.w3.org/Style/Examples/007/units: The em is simply the font size. In an element with a 2in font, 1em thus means 2in. Expressing sizes, such as margins and paddings, in em means they are related to the font size, and if the user has a big font (e.g., on a big screen) or a small font … Read more
Could not find method android() for arguments
I’ve been trying to import a project to Android Studio and this is where I am stuck, there is a similar question on Stack Overflow but it did not provide a solution to my particular error. This is my error log: The Gradle sync messages are: Error:(24, 0) Gradle DSL method not found: ‘android()’ Possible … Read more
Failed to find style ‘coordinatorLayoutStyle’ in current theme
I solved this rendering problem by simply inserting this line into the application theme (the app theme is usually placed in styles.xml). [SDK 28] [SDK 27] As suggested by @Chris. If the IDE does not find the CoordinatorLayout in Widget.Support or Widget.Design, just start typing “CoordinatorLayout” and it should give you some options.
HAX kernel module is not installed
If you are running a modern Intel processor make sure HAXM (Intel® Hardware Accelerated Execution Manager) is installed: In Android SDK Manager, ensure the option is ticked (and then installed) Run the HAXM installer via the path below:your_sdk_folder\extras\intel\Hardware_Accelerated_Execution_Manager\intelhaxm.exe or your_sdk_folder\extras\intel\Hardware_Accelerated_Execution_Manager\intelhaxm-android.exe This video shows all the required steps which may help you to solve the problem. For AMD CPUs (or older Intel … Read more