Use internal (COM. Android. Internal) and hidden (@ hide) APIs-Part 1

Xirihanlin 2011.06.02 Original path: Android has two types of APIs that cannot be accessed through the SDK. The first is the API in the com. Android.

Android transmits data between two activities

  Code highlighting produced by Actipro CodeHighlighter (freeware)> Caller activity: Public   Void Callactivity { // Package data and pass it into the called Activity Intent intent =   New

How to Use the android SDK to develop Android applications?

This is a root cause. Android is a new platform because Google has a powerful advantage and Java has been controlled by mobile phone vendors. Therefore, sun has very weak control over Java, so it is appropriate to learn Java. I found a lot of

Android Data Storage

Android supports four data storage methods: Preference, file, database, content provider . A test at work these days Program I want to store an image file. I have a little bit of experience using the file method.      First, preference, file,

Android menu system Introduction

If you have tried to use a pen or trackball to navigate the mobile phone menu system, you will know that using a traditional menu system on mobile devices is clumsy.   To improve applicationsProgramPracticality of menus,AndroidThree Optimized

Response Sensitivity of Android Best Practices

This may happen. You wroteCodeHas passed all the performance tests in the world, but when users try to use your applicationProgramStill make the user feel uncomfortable. Some areas where the application is not responsive include: slow response, long

Android Widget Toolkit

Android provides a toolbox for standard view to help you create a simple interface. By using these controls (modifications or extensions, if necessary), you can simplify your development and ensure consistency between applications.   The following

What constitutes an android application?

Android applications are composed of scattered and associated components and bound together by a project manifest. In manifest, each component and its role are described. There are six components that are the foundation of Android

Android UI Design Basics

Uidesign, human-computer interaction, and practicality are a big topic and will not be discussed in depth in this book. Even so, it is important to have an accurate understanding of the UI when you create it.   Android introduces some new terms for

Android instant messaging

  From the security perspective, developers are limited to access the Gtalk IM service in Android SDK 1.0. Therefore, the features described in this section cannot be tried if you use Android SDK 1.0.   Instead of deleting the affected chapters,

Databases in Android

Android uses the SQLite library to provide complete relational database capabilities without imposing additional restrictions.   Using SQLite, you can create independent and associated databases for each application. They are used to store and

How Android parses intent Filter

The anonymous runtime binding makes it important to understand how Android parses an implicit intent to a specific application component.   As you can see before, when startactivity is used, intent is implicitly parsed to a single activity. If

Android data storage skills

In Android, the data storage technique balances the speed, efficiency, and robustness:   Using shared preference When storing the UI status, user settings, or program settings, you may want a lightweight mechanism to store known datasets. Shared

Working with the android Database

A good habit is to create a helper class to simplify your database interaction.   Consider creating a database adapter to add a packaging layer that interacts with the database. It should provide intuitive and strong-type methods, such as adding,

Android Local Action

Android local applications also use intent to start activity and Child Activity.   The following list lists the local actions saved in the intent class with static string constants. You can use this action when creating an implicit intent in your

Android local broadcast action

Android broadcasts intent to many system services. You can use these System Event-based messages to add some features to your project, such as time zone changes, data connection status, SMS messages, or phone calls.   The following lists some local

Android database design considerations

When designing your database, we recommend that you consider the following:   Audio files (such as bitmap or audio files) are generally not stored in database tables. Generally, a string is used to store the file path, preferably a correct content

Android local content provider

Android exposes many content providers to access local databases.   You can use the techniques described earlier to use the local content provider. The android. provider class contains some convenient classes to simplify these useful providers,

Update Android SDK-2.0 and ADT-0.94

I have been using sdk1.5 since I came into contact with Android in July. I know that the SDK has been updated and the ADT has to be updated. I guess the process is troublesome, so I have been too reluctant to change it. I downloaded a piece of code

Use internal (COM. Android. Internal) and hidden (@ hide) APIs-Part 2

Xirihanlin 2011.06.03 Original path: In the previous article, I explained why it is difficult for us to use internal and hidden APIs without reflection. This

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