android: 如何開啓webview的LBS功能

不做過多解釋代碼全貼在下面。

首先想要用到手機的LBS功能，必須在androidManifest.xml中請求權限.

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

webview加載URL以及相關設置

private void loadUrl(){
    	browser.getSettings().setJavaScriptEnabled(true);
    	browser.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
    	browser.getSettings().setGeolocationEnabled(true);
    	GeoClient geo = new GeoClient();
    	browser.setWebViewClient(new PTCWebViewClient(this, browser));
    	browser.setWebChromeClient(geo);
    	String origin = "";
    	geo.onGeolocationPermissionsShowPrompt(origin, this);
	browser.loadUrl("http://www.mytransport.sg");
    }

PTCWebViewClient.java

public class PTCWebViewClient extends WebViewClient {
	
	private ProgressDialog pd;
	
	public PTCWebViewClient(Context con, final WebView web){
		pd = new ProgressDialog(con);
		pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
		pd.setTitle("MTC LTA");
		pd.setMessage("Loading, please wait...");
		pd.setIcon(R.drawable.icon);
		pd.setButton("Cancel", new ProgressDialog.OnClickListener(){
			@Override
			public void onClick(DialogInterface dialog, int which) {
				web.stopLoading();
			}
		});
		pd.setIndeterminate(false);
		pd.setCancelable(true);
	}

	@Override
	public boolean shouldOverrideUrlLoading(WebView view, String url) {
		view.loadUrl(url);
		return true;
	}
	@Override
	public void onPageStarted(WebView view, String url, Bitmap favicon) {
		super.onPageStarted(view, url, favicon);
		pd.show();
	}
	@Override
	public void onPageFinished(WebView view, String url) {
		super.onPageFinished(view, url);
		pd.dismiss();
	}
}

GeoClient.java

class GeoClient extends WebChromeClient {

    	@Override
    	public void onGeolocationPermissionsShowPrompt(String origin,
    	Callback callback) {
    	super.onGeolocationPermissionsShowPrompt(origin, callback);
    	callback.invoke(origin, true, false);
    	}
    }