Android

Android solves memory overflow problems  1. When the project contains a large number of images or the picture is too largeMethod 1: proportional reduction of images BitmapFactory. Options options = new BitmapFactory. Options ();

Android pull-down list (Spinner) Effects This article mainly introduces the Android drop-down list (Spinner) effect (implemented using C # and Java respectively). This article provides the implementation code and layout code in two languages, for

Android album Effects This article mainly introduces the Android album effect (implemented using C # and Java respectively). The original C # can also be used to develop apps ~ It feels good, because xiaobian does not like Java for the time being,

AppBarLayout, NavigationView, CoordinatorLayout, and CollapsingToolbarLayout of the new Android M Control   In the previous blog, we learned about Android Design SuppZ plugin? Http://www.bkjia.com/kf/ware/vc/ "target =" _ blank "class =" keylink ">

Android assets folder resource access, androidassets 1. Files in the assets folder are kept in the original file format. 2. Files in assets can only be read but cannot be written. 3. The resource files in the assets Directory do not automatically

Small screen! Five prime principles help you design mobile emails The email Design on mobile devices is not only a content filling list, but also involves many design elements. The design of mobile devices has never been simple. When people use the

Android M system in Depth Google released the Android M Developer Preview at this year's I/O conference, which officially introduced six new features: one is that users can customize application permissions, and the other is improved webpage

Analysis of memory overflow and Memory leakage In actual programming, we often talk about memory overflow and Memory leakage, especially for C/C ++ programs, the following code examples are C/C ++ ), this is because we will directly deal with

Use Volley's PullToRefreshListView for paging loading and pulltorefresh for pagingChecked_query_myProduct_listview.setOnRefreshListener (new OnRefreshListener2 (){@ OverridePublic void onPullDownToRefresh (PullToRefreshBase refreshView ){If (falg =

Memory Cache for Android memory optimization and android Memory OptimizationThe above two blogs have talked about the basic knowledge of images and image loading methods and optimization. All these optimizations are designed to avoid the OOM problem

HTML5 learning-Day1, html5-day1Collation I have been developing Android for some time in the company. Recently, the company wants to start a new project. For this reason, we have also started a project. At the conference, I pointed out that we hope

Use a thread to control the python program running for a certain period of time. import time Class Test (threading. thread): def _ init _ (self, para): # initialize the threading parameter. thread. _ init _ (self) self. para = para def run (self)

Android -- View, ViewGroup event (Touch event) processing mechanism SummaryEvents in Android Touch event, four statuses: ACTION_DOWN --> indicates that an event starts from ACTION_DOWN when the screen is pressed.ACTION_MOVE --> indicates a mobile

Low Memory Killer in Android  Under the existing technical conditions, memory is always a tight resource, not to mention the possibility of insufficient memory on the PC, not to mention on mobile devices. If the memory is insufficient, the system

Android handwriting ideas Work needs, and I have some knowledge about this.   Generally, you should know that you only need to use drawPath to draw images on The view.   The key to writing a pen is to change the strokeWidth of the path.   This is

Android interview summary, android excellent questions The following questions are all encountered by the landlord during interviews in the android exchange group. If you have good questions or good opinions, please share them. The author will

Summary of Web APP development skills and webapp development skills I. META/LINK related: 1. Baidu prohibits transcoding. When you open a webpage through a Baidu mobile phone, Baidu may transcode Your webpage and post its advertisement to Your

Method Swizzling is used to extract repeated operations. methodswizzlingUse Method Swizzling to extract repeated operations By Wu xueying Repeated operations, such as data reporting and public features. 1. Create a Category for UIViewController 2.

Relationship Analysis Between Handler, low.messagequeue, Message and MessageQueue, and loopermessagequeueI. Let's take a look at the procedure. 1. Use a Handler instance in a child thread /*********** Use the Handler instance as the sub-Thread *****

NSAttributedString record, nsattributedstring /// NSAttributedString. h // UIKit // Copyright (c) 2011-2014 Apple Inc. all rights reserved. // # import # import /************************ Attributes ************ * ********** // * Predefined