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    Home Unlabelled Android Dev - I have created this Motion Toast Library for Android Kotlin. It has various modes for creating beautiful toast.

    Android Dev - I have created this Motion Toast Library for Android Kotlin. It has various modes for creating beautiful toast.

    March 15, 2020

    Android Dev - I have created this Motion Toast Library for Android Kotlin. It has various modes for creating beautiful toast.

    I have created this Motion Toast Library for Android Kotlin. It has various modes for creating beautiful toast.

    Posted: 15 Mar 2020 01:47 AM PDT

    I made a customisable toggle button group library in Google's FlexboxLayout. It handles single/multi select, text + icons, smooth animations and more.

    Posted: 15 Mar 2020 04:27 AM PDT

    Experience Requirements for Developing Android ��

    Posted: 15 Mar 2020 03:05 AM PDT

    I'm really interested in android dev so I wanted to know the experience requirements to start building a custom OS from android source such as should I know java and XML or should I learn assembler for the hardware compatibility and which tools are used that made all the OSs we see like One UI, MIUI , EMUI and others . And thanks 😉

    submitted by /u/yokusokujanai
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    A simple method to add fade-in and out effect to change theme without needing a restart (maybe someone can take a look and let me know if it's alright)

    Posted: 15 Mar 2020 05:04 AM PDT

    Let me start by saying I might be doing something wrong here, but some more experienced people can correct me if my method has any problems.

    Here's how it looks:

    Forgive my designing skills

    1. Added getWindow().setWindowAnimations(R.style.WindowAnimation); in the onCreate() of parent activity which I wanted to switch the theme for.
    2. Where R.style.WindowAnimation is

    ​

    <style name="WindowAnimation"> <item name="android:windowEnterAnimation">@android:anim/fade_in</item> <item name="android:windowExitAnimation">@android:anim/fade_out</item> </style>

    1. Modified the recreate method of activity like below:

      @Override public void recreate() { super.recreate(); if (getCurrentTheme() == 1) { AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES); } else { AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO); } }

    2. Then I recreated the activity using getActivity().recreate(); in that fragment whenever I wanted to switch the activity (in my case choosing the theme using RadioGroup).

    And that added the fade effect to theme switching. I don't know if overriding recreate() method will have any bad consequences. Because it somehow only applies theme to some parts of the app if I don't override the recreate() like above. Maybe someone can let me know about that.

    submitted by /u/AwkwardShake
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    Is there an easy to understand tutorial for saving images from the Camera app and displaying them in my app?

    Posted: 14 Mar 2020 07:27 PM PDT

    I think this boils down to my not understanding URI's, or FileProvider. I've read up on them a fair amount, but something just is not clicking for me. Hopefully someone can point me to some resources that really dumb it down.

    My current goal is to open the Camera app with a button in my application, take a picture, and when I return to my application it's written to storage, and shows up in a gridview. As I take more pictures, they too are added to the gridview. And since they're written to storage, they will persist when I re-open the application.

    What I can do:

    - Have my app open the Camera app, and display the resulting image in a single ImageView. I've accomplished this by opening the Camera app with Intent(MediaStore.ACTION_IMAGE_CAPTURE) and adding an EXTRA_OUTPUT of my URI. Then startActivityForResult. Then onActivityResult I use BitmapFactory.decodeFile to get a Bitmap, then set it to the ImageView.

    - Display images from a collection of images in a gridview in a fragment in my activity. Think an incredibly limited Google Photos album page, but only showing images taken within this application.

    -Save images to file in an external folder.

    What I'm not sure how to do:

    - Find out what images (if any) exist in the storage of my application onCreate.

    - How to get the URI's from said images in storage.

    - Rework my displaying images in the gridview from just displaying images I've forced into the program to ones pulled from the URI's of stored images. This one may actually not be very difficult, but until I've worked out the previous two items I won't know.

    submitted by /u/AteThePrincess
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    Any way to contact Amazon support for their App Store that isn't their useless contact form?

    Posted: 14 Mar 2020 09:22 AM PDT

    I have a Fire TV app that is totally free but now when I try to update it, Amazon tells me that I have purchases in there and should use their IAP. I emailed them 3 or 4 days ago about this and have yet to hear anything about it. Base on my past experiences with them, I expect to just get a canned response.

    ​

    I also have another app which they keep refusing to list on Fire devices despite me removing pretty much all Google Play Services (still have Crashlytics but they usually allow that) and their support always sends me canned answers in reply. This is an app that on the Play Store has over 10 million downloads.

    ​

    So is there a better way to contact Amazon? I don't care if I have to pay to get support, I just want a human to give me some answers.

    submitted by /u/instantbitsapps
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    Simple introduction to Dagger DI by a Life way!

    Posted: 15 Mar 2020 04:21 AM PDT

    Is there common standard practice to implement a custom navigation drawer menu?

    Posted: 14 Mar 2020 06:48 PM PDT

    Previously, all the while, I'm implementing "standard" navigation drawer menu, by supplying proper menu file to app:menu

     <?xml version="1.0" encoding="utf-8"?> <androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true" tools:openDrawer="start"> <include layout="@layout/app_bar_main" android:layout_width="match_parent" android:layout_height="match_parent" /> <com.google.android.material.navigation.NavigationView android:id="@+id/nav_view" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="start" android:fitsSystemWindows="true" app:itemIconTint="?attr/mainMenuIconSelector" app:itemTextColor="?attr/mainMenuTextSelector" app:menu="@menu/activity_main_drawer" /> </androidx.drawerlayout.widget.DrawerLayout>

    Recently, I need to construct a custom navigation drawer menu dynamically, by reading from DB and perform some logic manipulation. I first thought this is a pretty common pattern, and I can get some good code example/ documentation on how to do so. But, so far, I can't get a common standard practice on how to do so.

    My plan is as follow so far (I'm not sure whether it is a good plan yet)

    1. Have a DB reading and logic manipulation, within a Fragment call MenuFragment.
    2. MenuFragment will use RecyclerView to show all menu items.
    3. Add MenuFragment to NavigationView.

    I'm getting close but I'm don't know how I can handle android:fitsSystemWindows="true". Currently, I'm stuck at that stage - https://stackoverflow.com/questions/60688716/androidfitssystemwindows-true-doesnt-work-well-for-fragment-used-for-custom

    Does anyone know how to implement custom navigation drawer menu in a proper way (By able to support android:fitsSystemWindows="true")? Do you mind to share the technique with me?

    Thank you.

    submitted by /u/yccheok
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    Control media playback through KeyEvents

    Posted: 14 Mar 2020 06:20 PM PDT

    Hey everyone! I'm developing an Android app which has a button whose purpose is to play and pause any music that's playing on the phone, regardless of the source of the audio, be it Spotify, Deezer, YT Music, or any other app. After a lot of googling I managed to find the following which does in fact pause and play music, but only affects the default android music player, no other media players.

    private static void pauseMusic(Context context, int keyCode) { KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_DOWN, keyCode); Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON); intent.putExtra(Intent.EXTRA_KEY_EVENT, keyEvent); context.sendOrderedBroadcast(intent, null); keyEvent = new KeyEvent(KeyEvent.ACTION_UP, keyCode); intent = new Intent(Intent.ACTION_MEDIA_BUTTON); intent.putExtra(Intent.EXTRA_KEY_EVENT, keyEvent); context.sendOrderedBroadcast(intent, null); } public void pauseMusic(View v) { pauseMusic(getApplicationContext(), KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE); }

    Android's documentation on media buttons says the following:

    Prior to Android 8.0 (API level 26), the system tries to send the event to an active media session. If there are multiple active media sessions, Android tries to choose a media session that is preparing to play (buffering/connecting), playing, or paused, rather than one that is stopped.

    The minimum API I set for my project is Android 6.0. I have tried the app whilst Spotify is playing audio and instead of stopping Spotify, it stops Spotify and plays a song from the default player. I've also tried to resume Spotify and the same thing happens. Is there someting I'm missing? Or something I'm doing wrong? Any pointers to the right direction or better alternatives would be greatly appreciated!

    submitted by /u/JAAT2000
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    If my phone cant get GPS location in a remote village, will a USB/bluetooth external GPS fix this?

    Posted: 14 Mar 2020 07:19 PM PDT

    I dont know what the issue is. Is it that the GPS chip is low quality or is it the satellite its using low quality? Im wondering if the solution is to get a external device that works with the Android phone that has better service which I guess is a combination of the chip and the satellite it uses...

    submitted by /u/splishyandsplashy
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    Volley request - onResponse method execution understanding

    Posted: 14 Mar 2020 05:12 PM PDT

    I have a method that fetches data from a URL using Volley with RecyclerView. The method works perfectly when I place the adapter to get the data within the onResponse method. however, when I move these two lines

    mExampleAdapter = new ExampleAdapter(MainActivity.this, mExampleList); mRecyclerView.setAdapter(mExampleAdapter);

    to the onCreat method, the app runs but with an empty activity.

    when I close the app and rerun it again. the data are shown. replacing these 2 lines back to the onResponse method and the app shows data on the first run.

    My question is why this is occurring? What is the explanation for this!

    also, let's say I don't have an adapter in this scop but rather a livedata object. meaning instead of these two lines:

    mExampleAdapter = new ExampleAdapter(MainActivity.this, mExampleList); mRecyclerView.setAdapter(mExampleAdapter);

    I have something like this:

    MutableLiveData<List<Flowers>> mutableLiveData = new MutableLiveData<>(); mutableLiveData.setValue(mExampleList);

    tired using LiveData object to save the respond from the onResponse method and pass the data to several layers till it reaches the UI(MVVM), still the same issue. the app requires the second run for the data to be shown.

    Method:

    private void parseJSON() {

    String url = "https://pixabay.com/api/?key=5303976-fd6581ad4ac165d1b75cc15b3&q=kitten&image_type=photo&pretty=true";

    JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null,

    new Response.Listener<JSONObject>() {

    u/Override

    public void onResponse(JSONObject response) {

    try {

    JSONArray jsonArray = response.getJSONArray("hits");

    ​

    for (int i = 0; i < jsonArray.length(); i++) {

    JSONObject hit = jsonArray.getJSONObject(i);

    String creatorName = hit.getString("user");

    String imageUrl = hit.getString("webformatURL");

    int likeCount = hit.getInt("likes");

    mExampleList.add(new ExampleItem(imageUrl, creatorName, likeCount));

    }

    mExampleAdapter = new ExampleAdapter(MainActivity.this, mExampleList);

    mRecyclerView.setAdapter(mExampleAdapter);

    } catch (JSONException e) {

    e.printStackTrace();

    }

    }

    }, new Response.ErrorListener() {

    u/Override

    public void onErrorResponse(VolleyError error) {

    error.printStackTrace();

    }

    });

    VolleySingleton.getInstance(this).addToRequestQueue(request);

    }

    submitted by /u/Alaa13
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    Copyleft Smartphone

    Posted: 14 Mar 2020 10:52 AM PDT

    open source/free instant messaging framework

    Posted: 14 Mar 2020 12:24 PM PDT

    Im looking for some kind of server for instant messaging (chat and other) like PubNub but self hosted and open source. I like the Parse Server concept - but it lacks instant/live messaging capabilities (parse live query is not enough)

    submitted by /u/lxknvlk
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    New Android design solidarity with world against the Corona Virus. #Android #Corona #Virus #New design #Solidworks

    Posted: 15 Mar 2020 02:38 AM PDT

    Help with a competition!

    Posted: 14 Mar 2020 03:15 PM PDT

    Hello!

    I'm participating in the TechNovation for Girls Competition, and my team needs to create an innovative Android App. We already know what the theme and content of our app, and the competition itself offers a full creation and programming curriculum.

    However, it is required the help of a mentor (who'll basically help us by giving us feedback) during the process, so if anyone in here could help us I'd be very grateful! You may pm me in private so I can explain things a bit more

    Thanks!

    submitted by /u/addictedtolanguages
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    HAL

    Posted: 14 Mar 2020 10:47 AM PDT

    What is best resource to read more about HAL and camera application pipeline?

    submitted by /u/Correct_Classroom
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    Run multiple sensors in background and send data to various fragments

    Posted: 14 Mar 2020 10:33 AM PDT

    I'm looking for a good resource/code base that demonstrates using multiple sensors in a mobile device. Particularly the design/architecture of handling sensors.

    I need to run multiple sensors in the background (even while the app is either in the background, or not running) and be able to send that data to various fragments.

    Is there specific design patterns and/or architecture that should be implemented when dealing with sensors?

    submitted by /u/Xcatchdubs8
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    How can I generate a mobile number on PC?

    Posted: 14 Mar 2020 11:53 AM PDT

    Hi, can someone please help me with that?

    submitted by /u/mynameishesed
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