I'm working on a complex Android Studio project, which creates many files and directories.
My question is: starting from a file or directory created, is there a command to search where the file is automatically created in the code?
E.g.: I have a textFiles/text.txt in emulator explorer... I want to find, starting from the file, where is the function createText() in the code that created the specifical file.
Press Ctrl + Shift + F and you will be able to search from whole project. In your case try to search createtext() or text.txt.
Make a complete search of mkdir() in whole solution, you will find the method where the directories are actually created. Then look for that methods usage for where its been called for creation of your specific file.(*Try debugging your code)
Hit the shift key 3 times and begin typing the file name.
Related
While using AndroidStudio I accidentally came across feature called LogcatFilter.
You can create a file with .lcf extension the following way:
Press command + shift + N. The following dialog will appear
2. Select LogcatFilter option. An empty file scratch.lcf will be created.
From the name of this feature I understand that somehow it can be used to filter out logs from Logcat, but I haven't found any documentation or articles on how to use it.
So, my question is how I can use LogcatFilter? Which format should I use to type my filter?
I have a big problem. Last I copied a CardView with RecyclerView from a video. After that I created a new empty activity, but the Javafile didn't want to accept the corresponding XML file. And if I go with ALT + ENTER he suggests to me to create your xml file, but afterwards he tells me it already exists. So I can open the XML file, the program recognizes it but it is not recognized in the Java data and I cannot select it there either. There a screen shot, There a picture from solution research, And There a photo of the xml File.
Can someone help me there? Thank you in advance!
I was facing the same problem but you just need to close your project and open it again, the error related to activity file will bee removed!!Just try it.....
maybe you need to rebuild your app
1- Build > clean project
2 - Build > Rebuild project
I hope it will work with you .
Delete those two files. Copy the code first.
Go to File ->new activity then create that activity and paste the code there, besides those lines.
I imported a project in Android Studio. It's a very complex code. There's a TabView. I want to replace 2 of the 3 tabs with some new code. What is the fastest way in Android Studio to delete their content and every associated class/method/line in the project?
Edit: For better understanding:
I have for example 3 methods: method1(), method2(), method3()
I simply want to delete everything in the project related to method2() and method3() so I can replace it with any content:
I want to delete all of the submethods, too: method2(), method2.1(), method2.2(), method2.3(), method2.1.1(), method2.1.2(), method3(), method 3.1(), etc.
How can I do this automatically in Android Studio?
Here are some tips that may help:
To find usages of a single method/variable across the entire project
Either hold CTRL + Left Mouse click on this method/variable; so you can see wherever they are used.
Or Right Mouse click on this method/variable >> Find Usages
To safely delete a method usage from the entire project:
Either Right Mouse click on this method/variable >> Refactor >> Safe Delete
Or Alt + Delete
Note: This doesn't include deleting global methods/variables that are wrapped in the method intended to be deleted .. I am not sure if Android Studio supports this or not.
To search for some text in your entire project which includes almost everything in your project including SDK stuff, like method/field names, namespace, Strings, XML attributes, and so on
Edit >> Find >> Find in path…
To search for text in your entire project which includes in file
names, field/method/class names
Shift + Shift
Hope this could help you.
I study a course and it told me to edit this layout file, How can I find it please because I searched on it and I did not find it
The course instructor told me:
""
In the new versions of Android Studio, after choosing the Empty Activity template, the layout file app/src/main/res/layout/activity_main.xml will look like this:
""
You must have created this file when you first created the project and this must be your launcher file. Navigate through your project and you can easily find your file.
To search, press Shift + Shift i.e. press Shift 2 times and type your file name and it will show you the results.
You can find this file under the layout folder in this menu:
I'm creating a simple file explorer on Android Studio, and I wonder which one of the following implementations is the best:
My solution:
I have an activity called MainActivity that displays my list of files, and each time the user clicks on a directory, it creates a new MainActivity (and the onCreate method gets the new list of files, ...).
Correction:
In a correction from a tutorial, I found that when the user clicks on a directory, instead of starting a new activity, the code keeps the current one and changes everything (clear the list and fill it with new files, change the title...).
Is there a solution that is better than the other ? Is it more efficient to keep always the same activity ?
Thanks for any help.
Keep a single activity no question about it !
When a user clicks an item you build your data-source based on the newly selected path. Make sure to distinct between files and directories. Then simply call notifyDataSetChanged and thats it !
To query the file system there are two ways:
The easy - use Java File.listFiles()
The hard - run shell command Runtime.getRuntime().exec( "ls -la" ) and parse response.
There are many open source projects on github for the subject. Example:
Amaze File Manager