J2me MIDlet操作手机功能性用法总结（如调用其他程序或者调用其他MIDlet）

分类： j2me/wm/andriod/移动开发 2010-07-14 11:01 957人阅读 评论(3) 收藏 举报

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方法1：MIDlet 通过 platformRequest，调用手机本地应用程序。

 示例：

S60中调用

platformRequest("nativeapp:application-exe=MediaPlayer.exe;content=E:/Feelings.MP3;application-args=-ExampleArgument");

S40中调用

platformRequest("localapp://gallery/show?folder=C:/predefgallery/predefphotos");

方法2：MIDlet通过 platformRequest，调用其他MIDlet。

示例：

S40中

platformRequest("localapp://jam/launch?midlet-name=ArcadeGames;midlet-vendor=Acme;sounds=OFF;difficulty=easy;wizard_mode=ON");

MIDlet启动参数说明

Nokia-MIDlet-Launch-Params: sounds,difficulty,wizard_mode

The ArcadeGames MIDlet can access the parameters as follows:

System.getProperty("sounds");

System.getProperty("difficulty");

System.getProperty("wizard_mode");

platformRequest("javaapp:midlet-name=ArcadeGames;midlet-vendor=Acme;sounds=OFF;difficulty=easy;wizard_mode=ON");

通过MIDlet的UID启动

platformRequest("javaapp:midlet-uid=0xE1000000;sounds=OFF;difficulty=easy;wizard_mode=ON);

方法3：手机本地应用程序调用MIDlet

代码如下：

The following example code shows how to launch a MIDlet from a native Symbian application.

RProcess rProcess;

TInt err = rProcess.Create(_L("javalauncher.exe"), _L("midlet-uid=0x10137c4d;startMode=startFromCmdLine;sound=ON;landscapeMode=true;"));

if (KErrNone == err)

{

TRequestStatus status;

rProcess.Logon(status);

rProcess.Resume();

// now wait until javalauncher exits

User::WaitForRequest(status);

if (status.Int() != KErrNone)

{

// Launching midlet failed

err = status.Int();

}

}

else

{

// Cannot start javalauncher

}

rProcess.Close();

The following example code shows how to launch the same MIDlet from a Symbian application using Open C APIs.

include

gint exitStatus = 0;

// Start javalauncher and wait until it starts midlet

gboolean startOK = g_spawn_command_line_sync(

"javalauncher midlet-uid=0x10137c4d;startMode=startFromCmdLine;sound=ON;landscapeMode=true;",

NULL,

NULL,

&exitStatus,

NULL);

if (startOK)

{

if (exitStatus != 0)

{

// launching midlet failed, (Symbian) error code in exitStatus

}

}

else

{

// Cannot start javalauncher

}

方法4：MIDlet重新启动

In Series 40 and Symbian, when a MIDlet is already running and it is re-launched, it is set on the foreground and can receive the new command line parameters.

In Symbian, every time a MIDlet is re-launched, the integer value in com.nokia.mid.cmdline.instance system property is incremented by one. This value can be used to check whether the MIDlet has really been re-launched or just brought to the foreground. The old values of the command line arguments are not changed unless new command line values redefine them. If JAD attribute Nokia-MIDlet-Background-Event has the value pause, the startApp method is called every time the MIDlet is brought to foreground. This provides an easy way to acquire new command line parameters.

方法5：从手机浏览器网站链接启动MIDlet

n Symbian, when a link with the javaapp: or localapp://jam/launch? URI scheme is opened on a web page, the corresponding MIDlet is launched. If JavaScript is enabled, a JavaScript function may also activate the link.

Before the MIDlet is started from a web browser link, the auto invocation permission of the MIDlet is checked. This means that in case of third-party MIDlets, the user is always asked at least once to confirm the MIDlet launch.

If you use non-US-ASCII characters in the URL, you must use UTF-8 encoding. Also spaces must be encoded, for example:

javaapp:midlet-name=Arcade Pro;midlet-vendor=Acme;midlet-n=1;sounds=OFF;difficulty=medium

方法6：MIDlet platformRequest其他常用功能

打电话:

platformRequest("tel:+19143680400");

打开网页:

platformRequest("http://www.forum.nokia.com/");

打开1个RTSP流连接:

platformRequest("rtsp://ra.yle.fi/ramgen/tv2/viihde/zencafe.rm");

利用本地默认软件打开1个本地文件

platformRequest("file://E/image.png");

打开短信编辑器，并发短信到指定号码

platformRequest("sms:+19143680400");

其他常用列表及功能：

使用连接后提示用语列表

In Symbian, localapp supports launching only the following applications:

Symbian本地应用程序列表

J2me MIDlet操作手机功能性用法总结