1、Java代码
public class MainActivity extends Activity {
private static final String TAG = MainActivity.class.getName();
private static final int PICK_VIDEO_CODE = 1000;
private WebView webView = null;
private Handler handler = new Handler();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView) findViewById(R.id.webView1);
WebSettings webSettings = webView.getSettings();
// 启用JavaScript
webSettings.setJavaScriptEnabled(true);
//加载本地HTML文件，路径位于/assets/html/index.html
webView.loadUrl("file:///android_asset/html/index.html");
// 添加JavaScript接口
webView.addJavascriptInterface(new Object() {
// 定义选择视频文件接口
@JavascriptInterface
public void pickVideoFile() {
handler.post(new Runnable() {
public void run() {
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, PICK_VIDEO_CODE);
}
});
}
}, "videoAPI");
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_VIDEO_CODE) {
if (resultCode == RESULT_OK) {
// 返回已选择的视频文件路径
String selectedVideoFilePath = data.getData().getPath();
Log.i(TAG, selectedVideoFilePath);
}
}
}
}
2、HTML+JavaScript代码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-touch-fullscreen" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<link rel="stylesheet" type="text/css" href="style/skins.css" />
<title>JS接口测试</title>
<style type="text/css">
body{
font-size:20px;
}
fieldset {
margin-bottom: 10px;
}
.list li {
line-height: 2em;
}
</style>
</head>
<body>
<fieldset>
<legend>视频调用接口示例</legend>
<div class="list">
<ol>
<li><a href="javascript:videoAPI.pickVideoFile()">测试选择视频文件</a></li>
</ol>
</div>
</fieldset>
</body>
</html>
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