Open source Chinese source Learning (ii)--splash interface

Today, we mainly learn the splash interface of open source China application launch.

Feature Description:

When the app launches, there is a launch welcome screen that completes the task in this interface:

1. Log upload of logs;
2. Skip to Main Page
3. Animation--Perform both of these actions at the end of the animation

Integration Guide:

When you develop your own application, the splash interface can be used to do some initialization work, such as:

1. Upload of log information;
2. Initialization of resources (your own experience – Copy the contents of the Assets folder to an SD card when Splash animation jumps)

Detailed Introduction

1. appstart.java--entrance to the entire application
2. loguploadservice.java--in AppStart, complete the last log upload in the local
3. Main interface of mainactivity.java--program

AppStart Analysis

In AppStart with an animation to control the image in the splash interface elegant display, at the end of the animation, complete two actions:

1. Start service, upload log;
2. Jump to the main program interface.

Loguploadservice Analysis--Start service

Start the service with the following code, which needs to be configured in the Mainfest file

    //在Mainfest文件中进行配置  <service android:name="net.oschina.app.LogUploadService"//启动Servicenew Intent(this, LogUploadService.class); startService(uploadLog);

Loguploadservice Learn more in the next article

mainactivity Analysis--Display the main interface

Start the main interface activity with the following code, which needs to be configured in the Mainfest file.

Configuration in the main interface<activityandroid:name=". UI. Mainactivity "android:launchmode="singletask "android:screenorientation=" Portrait " >                                                <intent-filter>                <action android:name="Android.intent.action.VIEW" />                <category android:name="Android.intent.category.BROWSABLE" />                <category android:name="Android.intent.category.DEFAULT" />                <dataandroid:host="www.oschina.net"android:scheme="http" / >                                                    </intent-filter>            <intent-filter>                <action android:name="Android.intent.action.VIEW" />                <category android:name="Android.intent.category.BROWSABLE" />                <category android:name="Android.intent.category.DEFAULT" />                <dataandroid:host="www.oschina.net"android:scheme="https " />                                                    </intent-filter>            <intent-filter>                <action android:name="Android.intent.action.VIEW" />                <category android:name="Android.intent.category.BROWSABLE" />                <category android:name="Android.intent.category.DEFAULT" />                <dataandroid:host= "my.oschina.net"android:scheme=" http " />                                                    </intent-filter>            <intent-filter>                <action android:name="Android.intent.action.VIEW" />                <category android:name="Android.intent.category.BROWSABLE" />                <category android:name="Android.intent.category.DEFAULT" />                <dataandroid:host="my.oschina.net"android:scheme="https" / >                                                    </intent-filter>        </activity>Start the main interface Intent Intent = new Intent (this, mainactivity.class); StartActivity (Intent);

Summarize the Harvest

1. Start the service in the splash interface and upload log logs.

So far, it's not quite clear where

• There is a code in the OnCreate method that prevents a third-party jump from appearing in a double instance, and it is not quite clear what it means, the code is as follows:

            // 防止第三方跳转时出现双实例        Activity aty = AppManager.getActivity(MainActivity.class);        ifnull && !aty.isFinishing()) {            finish();        }

• There are a series of actions in the Onresume, still do not understand why:

  @Override  protected  void  onresume  () {super . Onresume (); int  cacheversion = preferencehelper.readint (this , ,  "First_install"  ,-1 ); int  CurrentVersion = Tdevice.getversioncode (); if  (Cacheversion < CurrentVersion) {Preferencehelper.write (this ,  "First_install" ,  "First_install" , CurrentVersion); Cleanimagecache (); } }

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Open source Chinese source Learning (ii)--splash interface