how to make website app on android

There are often many errors when importing an Android app project. Taking the built-in alarmclock as an example, many errors often occur after eclipse is imported, as shown in: For example, intent. action_alarm_changed in cannot be accessed.Source codeSee why? According to Java programming specifications, we know that this API (static variable) is hidden, so it cannot be used in the SDK. After kn

objectsObject creation is never free. Creating an object is never free. The generational GC (with per-thread allocation pools) can make the allocation of temporary objects cheaper, but it is always more expensive to perform allocated memory than to perform allocation operations. As you assign more objects to the app, you may need to force the GC, and the GC operation will be a bit of a lag for the user exp

testing, we have to test the Application object, test execution of the model to make a clear choice, because the performance of the implementation of the model of the impact of a relatively large. The performance of the mobile application is also related to the response time of the service or interface, so the performance of the backend is also very important. After we have defined our testing objectives, we can accurately analyze the results of the

assets file.3. Call the setContentView () method of Activity to display the webpage view.4. after reading many pages through the WebView link, in order to allow WebView to support the rollback function, we need to overwrite the onKeyDown () method of the Activity class. If no processing is done, click the system rollback scissors, the entire browser calls finish () instead of rolling back to the previous page.5. You must add permissions to the AndroidManifest. xml file. Otherwise, the Web page

android2.3, android2.2 and below, the webview In the SDK does not fully support HTML5.The following is an example:Mainactivity. JavaPackage com. Android. webview. activity;Import Android. App. activity;Import Android. OS. Bundle;Import Android. View. keyevent;Import

First, the Android side of the lagThe Android app is prone to lag during specific use, such as having a meal when viewing a page, a slow response after switching tabs, or a slow operation when it comes to sliding.Second, the reasons for the lagThere may be many reasons for the lag, such as:1. High CPU2. Memory Overflow3. Main thread processing IO operation, etc..

Android and android Official Website Sometimes you want to know whether an APP has registered a clear intent. For example, you want to check whether a receiver exists, then, enable some functions in your AP based on whether the hacker exists. We can check PackageManager.Code public boolean isIntentAvailable(Context con

Quality is critical for an application to be successful in development. Users are asking them to decide that Android applications installed on their devices respond quickly and with reasonable performance. If the application fails to provide useful functionality and a stable user experience, it will be uninstalled quickly. In this article we will introduce ten tricks to quickly improve Android

IntroductionToday, Android, iOS, the world, what Tizen, COS blabla are ants, a look at know is to send leadership or to spend research and development funds output products, is not to win the market, for just won the leadership a smile, completely can be ignored. Android development and because the development of Java-based language, entry threshold is very low lead to basically a programmer, soak two days

I mainly want to summarize the ideas about Android mobile app in the forum. I think they can be implemented or interesting, and they can be used if they are not creative in the future. I also hope to help you. If you have any good ideas, remember to comment and leave a spark of your thoughts !!!!! 1. Programming controls the short circuit of the cell phone battery and turns it into a grenade. in case of dan

1. Make-jxxXX indicates a number. This command will compile the Android system and generate an image. XX indicates the number of CPU cores that can be used, which is particularly useful on the configured computer, it takes less than 20 minutes for the company's 16-core Ubuntu server to execute make-j16, while it takes 4 hours for the dual-core PC! 2.MakeSnodThis

Android easily supports background building + APP version update, and androidapp (This article describes how to update the APP version in Android. The source code is included at the end of this Article .) After reading this article, you can learn: 1. Version update Method 2. Interaction with the background 3. Handler

2015 and Xamarin, organizations can use existing skills and technology investments to accelerate time-to-market and to provide mobile applications for all use cases. Second, content planning This module will be a comprehensive introduction to the various technologies used in C#+xamarin to develop the Android phone app under VS2015. The contents of each chapter will be updated periodically to facilitate t

How the app should manage memoryAt all stages of software development, you should pay attention to your RAM consumption (that is, in the design phase of the software). There are many ways to use them to help you design and write more efficient code,You should use these techniques when designing and implementing applications to reduce the memory consumption of your application.Use the service as little as possibleIf your

App Development is a new technology, is also an emerging industry, for schools and students are still new things, in the concept and curriculum system, we do not have much understanding, many just start to learn Android app development students feel Android App Development

About the Android app optimization, from the beginning of the first plan, to the end of the series of memory optimization, unknowingly nearly three months of time, wrote 66 related blog post, is a systematic knowledge of their own, but also hope to give you some help.Here is a summary of this.RouteAndroid App Optimizer1. How to optimize

Android app performance Optimization View optimizationObjective:Whenever an app starts to expand quickly, as business functions become more complex, more and more functional modules are always causing such performance problems. Interaction is not smooth, ANR, mobile phone calorific value and so on performance issues in Androi