PhoneGap插件開發-流媒體
1.js插件開發
描述：提供給web開發端的接口定義，定義了一個VideoPlayer類和play函數，參數爲要播放的文件視頻地址。
示例代碼：
|
/** * Constructor */ function VideoPlayer() { };
/** * Starts the video player intent * * @param url The url to play */ VideoPlayer.prototype.play = function(url) { PhoneGap.exec(null, null, "VideoPlayer", "playVideo", [url]); };
/** * Load VideoPlayer */ PhoneGap.addConstructor(function() { PhoneGap.addPlugin("videoPlayer", new VideoPlayer()); }); |
2.VideoPlayer類
|
package com.phonegap.plugins.video;
import org.json.JSONArray; import org.json.JSONException; import android.content.Intent; import android.net.Uri; import com.phonegap.api.Plugin; import com.phonegap.api.PluginResult;
public class VideoPlayer extends Plugin { private static final String YOU_TUBE = "youtube.com";
@Override public PluginResult execute(String action, JSONArray args, String callbackId) { PluginResult.Status status = PluginResult.Status.OK; String result = "";
try { if (action.equals("playVideo")) { playVideo(args.getString(0)); } else { status = PluginResult.Status.INVALID_ACTION; } return new PluginResult(status, result); } catch (JSONException e) { return new PluginResult(PluginResult.Status.JSON_EXCEPTION); } }
private void playVideo(String url) { // Create URI Uri uri = Uri.parse(url);
Intent intent = null; // Check to see if someone is trying to play a YouTube page. if (url.contains(YOU_TUBE)) { // If we don't do it this way you don't have the option for youtube intent = new Intent(Intent.ACTION_VIEW, uri); } else { // Display video player intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(uri, "video/*"); }
this.ctx.startActivity(intent); } } |
3.配置插件
在res/xml/plugins.xml中添加
|
<plugin name="VideoPlayer" value="com.phonegap.plugins.video.VideoPlayer"/> |
4.調用插件
在html文件中添加
|
<script type="text/javascript" charset="utf-8" src="phonegap.js"></script> <script type="text/javascript" charset="utf-8" src="video.js"></script>
//Sample use: /** * Display an intent to play the video. * * @param url The url to play */ //play(url)
window.plugins.videoPlayer.play("http://path.to.my/video.mp4"); window.plugins.videoPlayer.play("file:///path/to/my/video.mp4"); |