There are many useful tools in the Android SDK Kit to help programmers develop and test Android apps, and improve their productivity dramatically. One of the visual debugging tools called Hierachy Viewer can easily help developers analyze, design, debug and adjust UI interfaces to improve development efficiency. This article will be a practical example of how to
Three or one up development3.1 Analysis: The development of Web page Source Viewer, the main steps are: According to the URL to make the request, parse the response stream to get the Web page source code, and then the page source code display.3.2 Front Screen: Input click get button, automatically get the specified page source code is displayed below.Put a code:ScrollView: This is a control that sets a vertical scroll bar. So even TextView
【It168 Technology] There are many useful tools in the android SDK kit that can help programmers develop and test Android applications, greatly improving their work efficiency. Hierachy viewer is one of the visual debugging tools, which can help developers design, debug and adjust interfaces to improve the development efficiency of users. This article will show yo
There are many useful tools in the android SDK kit that can help programmers develop and test Android applications, greatly improving their work efficiency. Hierachy viewer is a visual debugging tool that helps developers analyze, design, debug, and adjust the UI easily to improve development efficiency. This article will show you how to use this tool in the deve
Remote Control of Android simulators using VNC
Keywords: Android VNC
1 To http://code.google.com/p/android-vnc/
Download the zimage and fbvncserver files.
2. Run the following command to start the simulator:
Emulator
In the Android SDK Toolkit, there are many useful tools that can help programmers develop and test Android applications, greatly improving their productivity. One of them is called Hierachy Viewer Visual debugging tool, can be easily in the developer design, debugging and adjustment interface, improve user development efficiency. This article will take a practica
There are many useful tools in the Android SDK toolkit that can help programmers develop and test Android applications, greatly improving their work efficiency. Hierachy Viewer is one of the visual debugging tools, which can help developers design, debug and adjust interfaces to improve the development efficiency of users. This article will show you how to use th
Android imitation circle of friends Image Viewer
Before reading this blog post, I hope you can open your posts to the circle of friends and carefully check whether there is a "jiugongge" image area in the circle of friends, clicking an image will jump to the image details page, and the image sliding and scaling are supported? Is this function very common ?! So I just did this Demo today, and I will explain
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 re
Reference article: Heap Viewer
What can the Heap viewer do?
Real-time view of the app's allocated memory size and free memory size
Discover the memory Leaks
Heap Viewer conditions of Use
More than 5.0 of the system, including 5.0
Developer options available
Heap Viewer StartupYo
Android Performance Test--heap Viewer toolWhat can the Heap viewer do?
Real-time view of the app's allocated memory size and free memory size
Discover the memory Leaks
Heap Viewer conditions of Use
More than 5.0 of the system, including 5.0
Developer options available
Heap
ObjectiveRecently read this article, "Android UI performance Optimization", which uses the hierarchy viewer to optimize the layout. The development of Android so long, has been heard this tool, but never really go to use, have to say is a failure. Now just take advantage of the idle, study the use of Hierarchy Viewer.Start An
There have been a lot of articles on how the Hierarchy Viewer is used, and here is a step-by-step demonstration of how to use it, Ddna's "Android Tool" ignored UI Viewer: Hierarchy Viewer and Zhang Xingye's Android UI Optimization-The use of the Hierarchyviewer tool is great
[Android-007] [network image Viewer]
Network Image Viewer
Determine the image URL to send an http request
URL url = new URL (address); // gets the connection object and does not establish a connection HttpURLConnection conn = (HttpURLConnection) url. openConnection (); // set connection and read timeout conn. setConnectTimeout (5000); conn. setReadTimeout (5000)
implement this topic interface functionalityHere, I omitted the other code in the project, leaving only a frame structure. So our observer class is created.3. Create the Observer interface to define the functions that the viewer will implement.4. Create our Observer class:Realizing our well-defined observer interface becomes an observer.At this point, the framework of the entire observer pattern is built, so long as the business logic we want is impl
we can see, when setting up Adapter, a adapterdatasetobserver is constructed, that is, the observer, and finally, the Observer is registered to Adapter.Here we know that when the data of the ListView changes, call Adapter's Notifydatasetchanged () method, which again calls the Datasetobservable notifychanged () method, This method calls the OnChanged () method of all observers (Adapterdatasetobserver), and in the OnChanged () method calls the ListView re-layout method so that the ListView refre
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