Android Development Tutorial

Android Development 16

30 Comments

Android Fragments TutorialWelcome to part 16 of my Android Development Tutorial, or maybe I should call this one an Android Fragments Tutorial!

There has been a ton of demand for an Android fragments tutorial, so I wanted to try and do it right. It is very easy to get confused by fragments if they aren’t presented in the right way. I did my best to cover a lot in this video and most importantly to keep it simple. If you understand fragments you’ll be able to make great interfaces. Don’t worry I’ll cover everything in future tutorials.

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Code from the Video

strings.xml

dimens.xml

fragment_textview.xml

activity_main.xml

SimpleFragment.java

MainActivity.java

30 thoughts on “Android Development 16”

  1. Hey Derek,

    This doesn’t have anything to do with the video, but have you used Android Studio yet? And if so how do you like it? Do you think it’s well off to use instead of Eclipse? Also I’m sure you hear this enough but fantastic job on the videos.

    Reply

    1. Hey Chris, Yes I have used Android Studio and I found it to be pretty much exactly the same as if I used Eclipse. They are nearly identical. I had to install it in a bunch of computer labs and found it was harder to install on some systems. That is why I continue to use Eclipse

      Reply

      1. Hi,
        not that I dissagree, but I found Android Studio so much superior to Eclipse in regard to develloping Android apps. Yes they both are great IDEs and they both are great for coding Java. And since AS essentialy is IntelliJ (powerful IDE for Java aswell) with a plugin from Google. That makes it very powerful Android IDE too. Again, not that I suggest you to switch from Eclipseto AS (I can see that you know your way very well around it and you should stick with tool that you master) but I would realy like you to embrace it and perhaps even make a video about it 🙂
        I would bet my bottom dollar that you will find many differences and cool tools that Eclipse doesn’t provide.
        Cheers! 🙂
        I found your channel on Youtube only yesturday… VERY professional tutorials many – very useful – thanx for that!

        Reply

        1. Hi,

          Yes I agree that Android Studio looks nice. I try it out at least once a month. The only real problem I have with it is that I can’t get it to easily install on every OS, which is a requirement that I have because people all over the world watch my videos.

          A local university has me test install it in a few computer labs every month. As soon as it installs as easily as Eclipse Indigo I will definitely use it.

          Thank you for the input and the nice compliments 🙂

          Derek

          Reply

  2. I tried to follow it word by word and letter by better for the code, but still have the error message “unfortunately simple fragment has stopped”. in LogCat, it shows

    08-07 16:19:17.318: E/AndroidRuntime(7111): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.newthinktank.simplefragment/com.newthinktank.simplefragment.MainActivity}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.view.ViewGroup

    Any suggestions?

    Thanks,

    Reply

      1. Ah! Elementary mistake. I typed TextView instead of Linerlayout in the MainActivity Class for the container of the fragment. So it’s now working!

        Thanks Derek! Really enjoy your tutorial!

        Reply

          1. I was getting exactly same error and I found out in your video, you left it as TextView and didn’t change to LinearLayout.
            You should put balloon on it so other people won’t make same mistake.

            Reply

  3. I have a request: Could you puh-lease make a quiz/exam app tutorial with multiple choice answers and a grading system based on percentage? Also, instead of typing in the code (because we can copy-paste that) you go over the mechanics of the thing with emphasis on Java – which is insane and probably unhealthy 🙂

    Reply

  4. Hey Derek…I have a request for you! Wanna be our project manager? The project, an android app and/or rich web app, shall be called “banasoverflow”. Since you overflow us with knowledge, and “us = thousands”, we shall implement a product that resembles the stackoverflow.com website….just for fun and practice….a Banas-community based project 🙂

    Reply

      1. I can’t tell you how much I appreciate this comment… I’ve thought this on many occasions before. Asking questions on stackoverflow can be emotionally damaging. You either ask a question that’s beneath them to answer and get all kinds of crap, or you ask a question they can’t figure out the answer to and get no reply. 😛

        Reply

    1. Never mind found add a new interfance. thanks May have more questions coming up. I’m creating my first app based off of your videos.

      Reply

  6. Hello Derek, nice work u are doing here. Thanks for your time and dedication. Please i need you to help me with a bug in ma code,regarding fragments, if i try running the code i get an exception “android.view.InflagteException: Binary xml file line #8 error inflating class fragment” i tried all i could but could not get it fixed.

    Reply

  7. Dude i did the same code as yours. My LogCat throws ClassCastException. It says android.widget.TextView cannot be cast to android.view.ViewGroup.

    Thanks in advance…..

    Reply

  8. the fragment_textview.xml is a Linear Layout that has a text view.
    but i didn’t understand why when we created the activity_main.xml, we created a Linear Layout inside of the initial Linear Layout. is that because the second Linear Layout represents the Linear Layout of the fragment xml file.

    if that’s the case
    when we want to create a fragment as relative layout persay, in the main xml(which is a linear layout) we have to create inside a relative layout???

    i’m sorry if my question is not clear

    Reply

  9. i didn’t understand why we created a linear layout inside of the linear layout in the activity_main.xml file!!

    is that because the second linear layout represent the layout of the fragment_textview.xml file (which is a linear layout)

    if that’s true
    if we want a fragment with a relative layout persay
    in the main xml file(lets say it is a linear layout) we have to create a linear layout and inside him we have to creat a relative layout that represents the fragment???

    i’m sorry if my question is not clear..

    Reply

  10. Hi,

    i tried to insert it to my code, but it doesn’t work 🙁 There is no Error, but when i am running my app the fragment wont appear…

    Reply

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