android developer certification

Android Developer: Heap Viewer demonstration This demo shows the basic usage of the Heap Viewer tool. Heap Viewer reports in real time what type of objects, how many objects, and their size in Heap memory have been allocated to your application. Its advantages: Get the feeling of how your application allocates and releases memory. Determine Memory leakage. Prerequisites Bytes ---------------------------

order to start from scratch to plan an app to the app online this process as the main line, as far as possible to fit the actual combat, the whole process involved in the various types of knowledge, not limited to a certain aspect, so that the reader of the app development knowledge has a comprehensive understanding, help them broaden their horizons, And be able to complete the development of the app in a more professional way.Many of the contents of this book are on official documents, and the

events or fragment. But what if you've already used Actionbarsherlock in the project to compile? The problem is that you have inherited one of the sherlockactivity or sherlockfragmentactivity. The problem now is that you can't use Roboguice and Actionbarsherlock at the same time.The workaround is to define a base class for activities and fragments. Then you can use Roboguice and actionbarsherlock at the same time. You can take a look at the following anti-compilation solutionYou can download so

, cracked, two times packaging, want to make money estimated very mysterious ... Here, firmly accused of resisting the packing party, of course, the individual's ability is limited after all, to deal with the hateful packaging party or recommend the use of some security platform, such as love encryption, a person to a bunch of people or a bunch of people to a bunch of people? It depends on how you choose! Learning tutorials and Development materials:Android Development design needs to use almost

Android Developer: Memory Monitor demo This demo shows the basic usage and process of the Memory Monitor tool in Android Studio. Memory Monitors reports the Memory allocated by your app in real time. Its advantages: Display available and used memory in the chart, and garbage collection events over time. Quickly test whether the app slows down may be related to

will be turned off,layout will be scaled to full screen as usual, but a button will appear in the System status bar, which users can use to switch screen compatibility mode. If the application is compatible with all screen sizes andlayout is scaled correctly, then this property is not required. Note: the current screen compatibility mode only simulates 320DP-wide screens on handheld devices, so screen compatibility mode will not take effect when ANDROID:COMPATIBLEWIDTHLIMITDP is greater than 3

AES key in the malware , but this requires some technical capability. One months ago, another Android malware reported by researchers could disable a user's phone and ask the user to pay a ransom for it. 8 months ago, a malware called Cryptolocker could permanently lock a PC 's hard drive unless the victim paid 300 USD fee. The app is not listed on the Google Play store, and is spread primarily through other channels. As a result,

have to let people peeingThe result is that different manufacturers of castrated versions of Android may not be able to quickly evolve to a new version of Android, meaning that some device models are approved for Android, but in fact no longer belongs to Android.Android differentiation is more likely to show up in comparison to iOS, which is less fragmented, but

Preface This chapter is the Framework Topics/Application Resources Chapter of the Android developer guide, version is Android 3.2 r1, translated from: "CodeGuy", welcome to his blog: "http://www.cnblogs.com/CodeGuy ", thanks again for "CodeGuy "! We look forward to your participation in translation of Android related i

Enter and enter secret key: Android (System default) carriage return (keystore password is not visible) such as:This will successfully get to the development version of the SHA1 value, is not very simple ah, that is of course!Second, get the release version of the SHA1:Get the release version of the SHA1, and get the development version of the SHA1 1, 2, 3 steps, the difference is the 4th step slightly different.1, ibid.2, ibid.3, ibid.4, enter the c