I just installed Eclipse/ADT on one of my other computers, and everything is fine, except for the graphical layout editor. For some reason, the graphical layout component previews are not showing up like they normally do, just text.
I have it set to show previews, however, I am only seeing text and this is very odd.
Anyone know why this is?
Picture for reference:
It's because of API Level 19, Android 4.4.x KitKat doesn't support Show Previews in Eclipse ADT.
Try changing API Level to below 19.
Related
An Android App development beginner here. I created a simple app which converts KMs to Miles and vice versa. Issue seems to be with the interface. The interface for activity_main.xml is as below:
Interface on Android Studio compiler
But once I emulate it on an Nexus 6 API 29 emulator, it looks weird and doesn't work properly. Tried it on a Nexus 5 emulator as well, same issue. Here's a screenshot:
Nexus 6 API 29 Emulator
Moreover, when I tried installing the apk file on my Samsung Note 8, it doesn't install, even after changing the settings and allowing unknown apps to be installed. Please help.
Judging from first screenshot (red alert icons in "Component Tree" window) the issue is the fact that You did't constrained Your Views.
When using ConstraintLayout You can't just 'place' views in editor, they need to be constrained to something in order to be displayed in desired place.
For example: Your button with text "Convert miles to kms" should be constrained as follows:
left to parent left
right to parent right
top to EditText above it or to TextView "KMs".
But other views need to also be constrained to get desired behavior.
You can read about ConstraintLayout and how to use it in this tutorial from official documentation: https://developer.android.com/training/constraint-layout
I struggled a lot with this, and i'v searched a lot also but found nothing.
I am using VS 2017 to develop a Xamarin.Android app, with the minimum SDK version of Android 5.0 (API Level 21) and a target SDK version of Android 8.1 (API Level 27).
In the app, i am using the Arabic language, and i faced 2 problems :
The first one is that in the designer view, i can't get the direction of the layout to be RTL(Right to left), when i added the property : android:layoutDirection="rtl", it worked only when i run the app on my physical device, but in the designer i can't get it to be RTL, i tried even changing setting in the toolbar in the designer view here :
The second one is that the arabic text value is being show as squares as also shown in the picture above.
I have tried rebuilding but also no chance, anyone have an idea or a solution for what's happening?
I'm currently working with Xamarin for developing an android app. The structure of the app is really simple yet but a big problem appeared concerning the rendering of my main page. First, it's important to know that I'm supposed to develop for target API 23 so Android 6.0.
And every time I test my application on my Android 6.0 device via USB-debugging the design is totally messed up with my only (!) button duplicated many times and the textViews mixed up over the screen (As shown in the picture link below).
Even though I am new to Xamarin and Android (and C#) I have my settings (as I think) in perfect order. The minimum API level is 21, the target SDK version 23 (Android 6.0), my device runs version 6.0.1, the target compiling framework in properties is set to 6.0, the manifest is set up as I mentioned before and even my "Designer" window with the layouts .axml is set to v23.
I really don't know what to try next, because I want to start coding further. Would be nice if sb could help me out with that.
I have already tested the code of the app on a different API level (26 I think) and it worked perfectly fine with my Galaxy S9 in Debugger mode. Everything looked like it was designed in first place.
I also tried different AppThemes in Visual Studio but not one of the 7-8 I tried worked in any way different except for the colors.
The android app does only switch when clicking the button, texthttps://imgur.com/i0xChVniew 2 into the current date and time. I'm really sure, that my code is not the problem.
Picture: How it should look (In Xamarin)
Picture: How it looks on the phone
I'm wondering why in every tutorial I watch the preview section looks like this: i.e it has the actual device shown as preview and has a button for linking it to an activity
When mine looks like this: for some reason doesn't have the device
I'm sure I've just not installed something correctly or not clicked a checkbox, or a version of something is wrong but after some googling i can't seem to work out what it is. Any help would be greatly appreciated.
Newer versions of Android Studio do not show the device bezel by default. Everything looks installed correctly.
Look at the Android Studio window title.
Your video is using 2.0 Beta, and your newer version just doesn't have the bezel.
You'll also notice there's different buttons around the screen preview area.
You could disable it in older versions, I'm not sure if it's completely gone but it was probably removed because it took up screen space and didn't serve much purpose
I'm having problems in Android Studio. I can't see device screen in activity_main.xml and fragment_main.xml, but as well I see it in content_main.xml. Also, I can't add any elements to screen.
In the preview pane of right side try changing your API level to some lower or higher API it will most probably solve your issue.