ITBLogs.InfoXamarin : Access style in the code behind
I defined all styles in app.xaml, which is a kind of css style and that is the centralised place to manage the look and feel. I think that is a good practice. That is no problems to access the style across other xaml file. But in code behind, how do I get it working
That is simple,
Code
txt.Style= (Style) Application.Current.Resources["name"] |
Please don't user only Resources["name"] which is only calling Resources Dictionary in your local xaml, not global app.xaml. You will get a NullReferenceException
The Event in Fragment should be triggered when the fragment go to sleep
If you wish to do some actions, such as auto save, when the user go to other app, therefore the user put your app in a sleep mode at the background
You must override the onPause() method like below:
Code
@Override | |
public void onPause() { | |
super.onPause(); | |
if (!txtTitle.getText().equals("")) { | |
saveTag();; | |
} | |
} |
Disable Scroll Bar in ListView
I am building an app which has a number of listviews, for some phone it will be longer than its screen. So a global scroll bar are required. However, the listview has their own scrollbar bar, It will make scrolling some strange! Thus, I need to disable all scrollbar, only leaving the global bar.
There are no properties in ListView control to disable its scroll bars. The only way to do that is set HeightRequest to a super big number.
I wish in their future version can have this useful feature.
Stay in Android Studio 1.2, and keep away from 1.3 preview
At first, I upgrade my android studio to 1.3 preview from 0.8.6. I have not upgrade for ages, that is good to have the newest version. I have used their beta version for a while, android studio doesn't sound too bad even the version is still in beta. Thus, I used 1.3 preview rather than 1.2 stable. However, I spent some hours to upgrade my existing projects to work with this version of android studio. But I found their Gradle which has some problems to get google play ads library. Even I installed Google Support repository and Google Play library. Gradle still cannot find the ads library.
Finally, I gave up. I went back to Android Studio 1.2, then that is good all!
Android Studio Error :appcompat-v7:21.0.0': No resource found that matches the given name: attr "adnroid;XXXX"
After I upgraded my android studio from 0.86 and 1.2. I tried to build my project, I got a lot of errors like appcompat-v7:21.0.0': No resource found that matches the given name: attr: android :xxxx"
Actually, that is because appcompat-v7:21.0.0' required API 21. So, I need to install API 21 Platform SDK, Extra> Google Support Repository and Google Support Library.
The most important part, the part I missed, in the build.gradle set complie sdk to 21
Code
android { | |
compileSdkVersion 21 |