By Wei-Meng Lee
Android program improvement Cookbook: ninety three Recipes for construction profitable Apps by means of Wei-Meng Lee
2013 | 408 Pages | ISBN: 1118177673 | writer: John Wiley & Sons, Inc. | PDF | 24 MB + 32 MB
A must-have selection of ready-to-use Android recipes!
The acclaim for Google Android units is outwardly unstoppable and the Android four liberate deals, for the 1st time, a unmarried OS resolution for construction either cellphone and pill functions. With that interesting info in brain, veteran writer Wei-Meng Lee provides you with a hundred detailed recipes for you to practice this day so that it will become aware of ideas to a couple of the main regularly encountered difficulties that exist in Android programming.
Covering the scope of a number of Android releases up via Android four, this reference incorporates a activity description, by means of the solution(s) on hand, and a standalone undertaking dossier that illustrates using the recipe. Formatting every one recipe to be standalone, Wei-Meng Lee permits you to bounce into the suitable recipe to discover an answer to precise challenges.
Android program improvement Cookbook is your strategy to discovering...solutions!
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Extra info for Android Application Development Cookbook: 93 Recipes for Building Winning Apps
Back in the main calling activity, implement the onActivityResult() method. You need to check for the request code to ensure that you are getting the result from the correct activity. show(); } } } } To retrieve the data sent using the setData() method, use the getData() method of the Intent object (passed in as the second argument of the onActivityResult() method). zip In the previous recipe, you saw how to pass simple data (such as strings and integers) between activities. This recipe demonstrates how to pass objects between activites.
Figure 1-5 shows the second broadcast receiver being called. zip When you send a broadcast using the sendBroadcast() method, all the broadcast receivers that match the specified action are called in random fashion. What if you want to assign a particular order to the broadcast receivers so that some broadcast receivers will be called before others? To do that, you need to assign a priority to the broadcast receivers. setPriority(10); registerReceiver(myReceiver, intentFilter); } The setPriority() method takes a priority value between 0 (default) and 1,000.
6 ❘ CHAPTER 1 Android Fundamentals Solution You can make use of the Intent class to pass data to another activity. putExtra("age1", 25); } } The preceding statements create an Intent object and then attach two values to it using the putExtra() method: one for a string and one for an integer. You can also pass in a Bundle object using the Intent object. A Bundle object is like a dictionary object, as you can specify key/value pairs. 2 Passing Data Between Activities When you start another activity using the Intent object, the data attached to the Intent object is passed to the destination activity.
Android Application Development Cookbook: 93 Recipes for Building Winning Apps by Wei-Meng Lee