By Kyle Mew, Rick Boyer
The Android OS has the biggest set up base of any working approach on the planet; there hasn't ever been a greater time to profit Android improvement to jot down your individual purposes, or to make your personal contributions to the open resource community!
This “cookbook” will make it effortless that you should bounce to a subject matter of curiosity and get what you must enforce the function on your personal program. while you are new to Android and examine most sensible via “doing,” then this ebook will supply many issues of interest.
Starting with the fundamentals of Android improvement, we stream directly to extra complex thoughts, and we'll consultant you thru universal projects builders fight to resolve. the 1st few chapters hide the fundamentals together with actions, Layouts, Widgets, and the Menu. From there, we conceal fragments and information garage (including SQLite), gadget sensors, the digital camera, and GPS. Then we movement on extra complex issues comparable to pics and animation (including OpenGL), multi-threading with AsyncTask, and net performance with Volley. We'll additionally exhibit Google Maps and Google Cloud Messaging (also referred to as Push Notifications) utilizing the Google API Library.
Finally, we'll look at numerous on-line providers designed in particular for Android improvement. Take your program big-time with complete net net providers with no need to develop into a server admin by way of leveraging the facility of Backend as a provider (BaaS) companies.
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Extra resources for Android Application Development Cookbook Second Edition
Three steps occur: ff Measure: This is where the Views determine their size, starting with the parent and working through all the children. The parent may have to call its children multiple times to work out the final size. ff Layout: This is where the parent determines the position of its children ff Draw: This is where the Views are actually rendered This process starts with the parent, which then iterates through all its children. Those children iterate through their children. This creates the Layout Tree, with the parent becoming the root node in the tree.
Even in our limited example, adding a new country to the screen is as simple as adding the name to the country list. More importantly, the list can be updated during runtime while the user is using the app (for example, downloading an updated list from a website to show real-time options). There's more... The ListView also supports a multiple selection mode using the setChoiceMode() method. simple_list_item_checked. While most applications requiring a scrolling list turn to the ListView, Android also offers the GridView.
1. xml file and change it as follows:
Android Application Development Cookbook Second Edition by Kyle Mew, Rick Boyer