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Recently read the article "Speed Up your app". This is an article on the Performance analysis and optimization of Android apps. In this article, the author describes his app analysis optimization rules, the tools and methods used. I think we should learn from it. Good English readers can read the original text (link: http://blog.udinic.com/2015/09/15/speed-up-you

Android APP performance analysis methods and tools, androidapp I recently read Speed up your app. This is an article about Performance Analysis and Optimization of Android apps. In this article, the author introduces the APP analysis and optimization rules, and the tools and

Android App Job write, write for Android Homework Guide 1. Introduction In this job, you need to design an Android application for a simple delivery system. The mobile device running this application will be used by the delivery person. After the delivery person logs on to the system, he/she should be able to view a

Original address: Http://developer.android.com/guide/topics/data/install-location.html#CompatiblityFrom API8, you can install your app on an external storage. This is an optional feature that you can declare in your app's manifest: Android:installlocation property. Assuming that you do not declare this attribute, your application will be stored internally and cannot be moved to an external storage. xmlns:android = "/http" Schemas.android.com/apk/r

The source is the campus second-hand trading system application with the service side, is also an Android and Javaweb-based campus second-hand trading system, including a full set of Android client, Javaweb server, MySQL database, can be basic list display posts, display post details, user registration login, favorite posts, messages , upload images to publish in

During the development of Android project, there is a lack of translation in English and Chinese, this Python script is used to check if the string is missing the corresponding translation1 #!/usr/bin/env python2 #Encoding:utf-83 4 ImportOS, sys, getopt5 ImportXml.dom.minidom6 Importsubprocess7 fromXml.dom.minidomImportNode8 9 #determine if the app project is based onTenAxml='Androidmanifest.xml' One Ares

size smaller. There is no problem with adaptation. 12, do not use PNG crunchingIf you can't (or don't want to) convert your PNG format picture to WEBP, you can still increase the build speed by banning the images from being automatically compressed every time you build the app, to disable this optimization, build.gradle add the following code:android { ... aaptOptions { false }}13, use Instant RunInstant run significantly reduces the time

is parsed./*** Blog list return value processing *@paramJsonarray Blog List*/ Public voidBlogresulthander (Jsonarray Jsonarray)throwsException { for(inti = 0; I ) {Jsonobject jsonobject=Jsonarray.getjsonobject (i); HashMapNewHashmap(); Itemhashmap.put ("UserName", Jsonobject.getjsonobject ("Blogusersset"). GetString ("Usernickname"))); Itemhashmap.put ("Createtime", Jsonobject.getstring ("Blogcreatetim

This article is a ramble about how we can build a good architecture in the early stages of Android development when the project is initialized.About the Android architecture, because of the limitations of the mobile phone, I do not think there is really much to talk about, but from the perspective of development, see neat code, graceful layering is always a comfortable enjoyment.From the artistic point of v

This article is a ramble about how we can build a good architecture in the early stages of Android development when the project is initialized.About the Android architecture, because of the limitations of the mobile phone, I do not think there is really much to talk about, but from the perspective of development, see neat code, graceful layering is always a comfortable enjoyment.From the artistic point of v

the CheckBox is set to unselected. I. Code Implementation Effect Ii. Code Implementation 1. activity_main.xml The layout of the main interface is very simple. You can delete a Button and a ListView that stores user information. 2. activity_main_list_view.xml The layout contains a selected CheckBox that displays the TextView of the content and a TextView that can be slide for deletion. 3. sliding effec

sliding or sweep the test application, and then calculate the result by manual or program number frame method to get the frame rate. Test for screen slide smoothness:Method is like frame rate test, the only difference is the difference of the final result calculation formula Capture app frame rate (Android fluency fps test):1. Turn on the Mobile developer option, tick the GPU display profile (the syste

only stores information stored on the local machine.One is network transmission data encryption, which involves the network protocol and the encryption protocol between the server. There are many local encryption methods:1. MD5 encryption algorithm. MD5 is an irreversible algorithm that has no decryption algorithm (currently it is said that there are methods to crack it ).Ii. DES encryption. Reversible.3. RSA encryption. ReversibleFor projects that d

Android device requires the user to adapt to touch, input, shake, or even press the hardware keys from time to times. They need to identify styles such as input area, selection box, modal dialog box, and menu. Do you really want to add more burdens to them? Use a simple and intuitive list. In the app open screen, use large icons to present the main features. Add

1. Android AAPTAAPT is an abbreviation for the Android Assert packaging tool that uses AAPT to view the APK information and to list the contents of the APK package2. Monkey Runner and ChimpchatThe Monkeyrunner tool provides an API for writing programs, control an Android device or emulator from outside of

file directory. The package name and activity class name specified in the Wizard are shown below;"Gen", which contains the Java source files compiled by ADT;"Android2.1-update1", Android. jar, the build target platform of this project. android2.1 indicates that the target running environment of this project is Android SDK 2.1;"Assets": stores the original resour

Allows your Android app to use multiple themes (Part 2) and androidpart Original article: Supporting multiple themes in your Android app (Part 2)Translator: chaossssProofreader: Mr. SimpleStatus: complete In the first part of this post, we have created a light theme and made initial preparation to support multiple the

(MainActivity. this, android. R. layout. simple_list_item_1, data); listView. setOnItemClickListener (new OnItemClickListener () {@ Overridepublic void onItemClick (AdapterView Parents, View view, int position, long id) {// TODO Auto-generated method stubToast. makeText (MainActivity. this, "you have selected" + data [position], Toast. LENGTH_SHORT ). show ();}});}} Display Effect T

The main topics in this section include the Android Desktop widget, the app Widget Development Guide, and a simple example of how to visually explain the app widget.The concept of widgets, app widgets, Web appsThe original concept of the widget was a 98 Apple engineer named Rose, who was officially known until 2003, bu

About the Android architecture, because of the limitations of the mobile phone, I do not think there is really much to talk about, but from the perspective of development, see neat code, graceful layering is always a comfortable enjoyment.From the artistic point of view, we are actually pursuing a kind of beauty.This article analyzes several of today's more popular Android software packages , and finally we