Mobile Develop

Today overcomes the problem of JNI warning:illegal start byte 0x81.The problem occurs when the encryption method is called via JNI, and the ciphertext content is returned after the call, resulting in this problem.After searching abroad for some time.

Recent projects, the use of ProgressBar. Think of to use the effect of Android5.0, it is readily implemented.：The approximate idea: 1. The circle is drawn through the canvas 2. The animation of the circle is controlled by animator.Code: 1. Drawing

Finally:BeyondViewController.h beyondviewcontroller.h// 04_ emoticons//// Created by Beyond on 14-7-22.// Copyright (c) 2014 Com.beyond. All rights reserved.//#import @interface Beyondviewcontroller: Uiviewcontroller@property (Weak, nonatomic)

Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process:starting with any positive integer and replace the number by the Sum of the squares of its digits, and repeat the process until the

Before I wrote Sdwebimage's use method, mainly uses with obtains the network picture, has not seen the friend to have a look.This article will mainly introduce the implementation of the principle of sdwebimage, mainly for the principle of acquiring

Mobile phones now often have full-screen pop-up windows or masks like apps, but there's a tricky problem:When a scrollbar is located at the bottom of a pop-up window or mask, the sliding window or mask scrolls the underlying content at the same time,

As we all know, the process in the operating system is the smallest unit of OS allocated resources, and the thread is the smallest unit to perform the task. A process can have multiple threads to perform tasks that can share the resources that the

IntroductionRecently, learning things more scattered, all kinds of knowledge mixed, so write down the study record, lest again forget.Official website: http://greenrobot.org/greendao/documentation/introduction/Let's start by introducing what is

I. Overview of the binder mechanismIn Android development, many times we need to use inter-process communication, so-called interprocess communication, the mechanism to achieve inter-process communication, such as sockets, pipes, etc., there are

Button Handler (key handling program)Key handlers are implemented using the processing mechanism of the Gpiote(GPIO Task and Event) to prevent keystrokes from dithering. The timer is turned on in the Gpiote event handler.After the timer expires, the

It's going to be an effect today. There are two textview on the relativelayout of the component. These two textview have different color values, and the effect now is that when Relativelayout is clicked, the entire item has a highlighted

on the MTK android4.4 , there are several commands to package the system uaserdata bootimageat high speedfor increased efficiency. Snod : This command is capable of high-speed packaging system . is not to run various dependent files on Android.

1. After updating the records to the server query, always query the updated informationCan only be found before the update, it is immediately inferred that the problem of caching. Search on the Internet, the problem is targeted to the JPA cache, we

Activity as one of the four components in Android is very important. There is a lot of activity in the app, what data structures are used to manage the activity? What is the difference between several startup modes of activity? There is also the

Android.graphics.Bitmap (bitmap) is an action class specifically provided in the Android phone for manipulating picture resources, using this class to read a picture resource directly from a resource file. And make some simple changes to these

It is not difficult to realize the horizontal sliding effect on the mobile side, and it is easy to realize the principle and business logic of the implementation. Principle: Touchstart (Finger press the moment to get relative to the position of the

https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/ aboutthelanguagereference.html#//apple_ref/doc/uid/tp40014097-ch29-xid_453Official Apple document on

Recently in the high-D map, due to user requirements, have to use scrollvew nested Mapview, although the official request does not recommend doing so, but also forced to helpless ... The devil is a tall foot, the road Gao Zhang. There is something

Many websites now use adaptive web design (response-web-design) to meet the needs of a large mobile user Base. however, in the technical design of adaptive web pages, for the sake of SEO considerations, You also have to take care of how Baidu is

Transferred from: http://blog.csdn.net/luoshengyang/article/details/6618363/In android, each application is made up of activity and service that are likely to run in the same process or run in different processes. so, How does the activity or