android

问题 Android O introduces a new feature, Fonts in XML, which lets you use fonts as resources. And I am creating the font folder in resource file as it provided by Android developer, but the problem is that I am getting error that file name must end with .xml while using the font folder which is provided in Android O release. Please check the below layout for it. <TextView android:id="@+id/txtMsgCount" android:layout_width="wrap_content" android:layout_height="16dp" android:background="@drawable

问题 I'm using ListView widget to show items as a list. In a window three, items viewing must the middle item place in the middle. So how can I detect position of ListView when scrolling stop? How to detect ListView Scrolling stopped? 回答1: I used NotificationListener that is a widget that listens for notifications bubbling up the tree. Then use ScrollEndNotification , which indicates that scrolling has stopped. For scroll position I used _scrollController that type is ScrollController . new

问题 I'm using ListView widget to show items as a list. In a window three, items viewing must the middle item place in the middle. So how can I detect position of ListView when scrolling stop? How to detect ListView Scrolling stopped? 回答1: I used NotificationListener that is a widget that listens for notifications bubbling up the tree. Then use ScrollEndNotification , which indicates that scrolling has stopped. For scroll position I used _scrollController that type is ScrollController . new

问题 I'm working on an android app and I'm fairly new to all this, including mobile app development, so I have a few questions. Any help would be amazing! 1) Is it possible to swipe between entire activities (including action bar)? And I don't mean like viewPager swapping between fragments, I mean swapping the entire screen (like snapchat does on iOS). Is this possible at all? And if so, how can I do this? 2) What is the best way to implement a master/detail type layout? Like twitter for instance,

问题 I'm trying to build this old app on the newest version of Android Studio that requires Gradle 1.10. I keep getting sync errors (See below). SYNC ERROR: Gradle sync failed: Unsupported method: SyncIssue.getMultiLineMessage(). The version of Gradle you connect to does not support that method. To resolve the problem you can change/upgrade the target version of Gradle you connect to. Alternatively, you can ignore this exception and read other information from the model. Consult IDE log for more

问题 I'm trying to build this old app on the newest version of Android Studio that requires Gradle 1.10. I keep getting sync errors (See below). SYNC ERROR: Gradle sync failed: Unsupported method: SyncIssue.getMultiLineMessage(). The version of Gradle you connect to does not support that method. To resolve the problem you can change/upgrade the target version of Gradle you connect to. Alternatively, you can ignore this exception and read other information from the model. Consult IDE log for more

问题 I'm trying to build this old app on the newest version of Android Studio that requires Gradle 1.10. I keep getting sync errors (See below). SYNC ERROR: Gradle sync failed: Unsupported method: SyncIssue.getMultiLineMessage(). The version of Gradle you connect to does not support that method. To resolve the problem you can change/upgrade the target version of Gradle you connect to. Alternatively, you can ignore this exception and read other information from the model. Consult IDE log for more

问题 I rooted my device and working in host mode. I can able to detect the usb device connected to my tab but Am having two questions. 1) i try to display my device name using device.getDeviceName(); but its showing something like/dev/usb/002/002 I need to get the manufacturer name of the usb device name. I thing its available in accessory mode but i need to get the manufacturer name in host mode. 2)I need to transfer some data from my app to the usb port in android. i can able to detect the

问题 I rooted my device and working in host mode. I can able to detect the usb device connected to my tab but Am having two questions. 1) i try to display my device name using device.getDeviceName(); but its showing something like/dev/usb/002/002 I need to get the manufacturer name of the usb device name. I thing its available in accessory mode but i need to get the manufacturer name in host mode. 2)I need to transfer some data from my app to the usb port in android. i can able to detect the

问题 I am trying to do zoom using double finger touch gesture in the camera preview mode. But i unable to do that. I have done that Zoom control on the ImageView and it's working fine. Now i want to do that in the camera preview mode i.e. when we start the camera we can able to do zooming using double finger gesture. Below i an adding the code for double finger gesture for zooming the image. @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub ImageView