Update for Android Studio 1.0 Since Android Studio 1.0 was released (and a lot of versions between v1.0 and one of the firsts from the time of my previous answer) some things has changed. My description is focused on adding external library project by hand via Gradle files (for better understanding the process). If you … Read more
Note that memory usage on modern operating systems like Linux is an extremely complicated and difficult to understand area. In fact the chances of you actually correctly interpreting whatever numbers you get is extremely low. (Pretty much every time I look at memory usage numbers with other engineers, there is always a long discussion about … Read more
You have some options to handle this deprecation the right (and future proof) way, depending on which kind of drawable you are loading: A) drawables with theme attributes ContextCompat.getDrawable(getActivity(), R.drawable.name); You’ll obtain a styled Drawable as your Activity theme instructs. This is probably what you need. B) drawables without theme attributes ResourcesCompat.getDrawable(getResources(), R.drawable.name, null); You’ll … Read more
1. How can I completely avoid reverse engineering of an Android APK? Is this possible? AFAIK, there is not any trick for complete avoidance of reverse engineering. And also very well said by @inazaruk: Whatever you do to your code, a potential attacker is able to change it in any way she or he finds … Read more
To open a URL/website you do the following: String url = “http://www.example.com”; Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse(url)); startActivity(i); Here’s the documentation of Intent.ACTION_VIEW. Source: Opening a URL in Android’s web browser from within application
First, get the intent which has started your activity using the getIntent() method: Intent intent = getIntent(); If your extra data is represented as strings, then you can use intent.getStringExtra(String name) method. In your case: String id = intent.getStringExtra(“id”); String name = intent.getStringExtra(“name”);
Here’s what I do: First of all I check what providers are enabled. Some may be disabled on the device, some may be disabled in application manifest. If any provider is available I start location listeners and timeout timer. It’s 20 seconds in my example, may not be enough for GPS so you can enlarge … Read more
Experts will tell you: “When I see the UI, I will know whether to use an Activity or a Fragment“. In the beginning this will not have any sense, but in time, you will actually be able to tell if you need Fragment or not. There is a good practice I found very helpful for … Read more
This answer describes the process of retrieving the stack trace. Already have the stack trace? Read up on stack traces in “What is a stack trace, and how can I use it to debug my application errors?” The Problem Your application quit because an uncaught RuntimeException was thrown. The most common of these is the … Read more
You need to use Html.fromHtml() to use HTML in your XML Strings. Simply referencing a String with HTML in your layout XML will not work. This is what you should do in Java if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { textView.setText(Html.fromHtml(“<h2>Title</h2><br><p>Description here</p>”, Html.FROM_HTML_MODE_COMPACT)); } else { textView.setText(Html.fromHtml(“<h2>Title</h2><br><p>Description here</p>”)); } And in Kotlin: textView.text = if (Build.VERSION.SDK_INT >= … Read more