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POHow to Ignore certain methods and code in a Class? Based on SDK
 

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    <p>I was reading over <a href="http://android-developers.blogspot.com/2009/04/backward-compatibility-for-android.html" rel="nofollow noreferrer">http://android-developers.blogspot.com/2009/04/backward-compatibility-for-android.html</a> But I'm really not grasping how to ignore certain lines of code. I have this Activity (posted below) and it's a simple webview. However, I want to have geolocation enabled(even if it is only for 2.0 and up phones), since these methods weren't introduced until SDK 5 (android 2.0) and I would like the webview to be able to at the very least be able to load on a 1.5 phone rather than just crashing. Could someone possibly show me how to take this code and make it ignore the lines of code that i pointed out with the starred comments when the users phone SDK is LESS than SDK 5?</p> <pre><code>package com.my.app; import com.facebook.android.R; //NEEDS TO BE IGNORED********************************************************** import android.webkit.GeolocationPermissions; import android.webkit.GeolocationPermissions.Callback; //END************************************************************************** import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.util.Log; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.webkit.CookieSyncManager; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.Toast; //GeolocationPermissionsCallback NEEDS TO BE IGNORED********************************************************** public class Places extends Activity implements GeolocationPermissions.Callback{ private ProgressDialog progressBar; public WebView webview; private static final String TAG = "Main"; String geoWebsiteURL = "http://google.com"; @Override public void onStart() { super.onStart(); CookieSyncManager.getInstance().sync(); } public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); CookieSyncManager.createInstance(this); CookieSyncManager.getInstance().startSync(); webview = (WebView) findViewById(R.id.webview); webview.setWebViewClient(new testClient()); webview.getSettings().setJavaScriptEnabled(true); webview.getSettings().setPluginsEnabled(true); webview.loadUrl("http://google.com"); progressBar = ProgressDialog.show(Places.this, "", "Loading Page..."); //THIS NEEDS TO BE IGNORED************************************************************ webview.getSettings().setGeolocationEnabled(true); GeoClient geo = new GeoClient(); webview.setWebChromeClient(geo); } public void invoke(String origin, boolean allow, boolean remember) { } final class GeoClient extends WebChromeClient { @Override public void onGeolocationPermissionsShowPrompt(String origin, Callback callback) { super.onGeolocationPermissionsShowPrompt(origin, callback); callback.invoke(origin, true, false); } //END OF CODE THAT NEEDS TO BE IGNORED************************************************ } private class testClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { Log.i(TAG, "Processing webview url click..."); view.loadUrl(url); return true; } public void onPageFinished(WebView view, String url) { Log.i(TAG, "Finished loading URL: " +url); if (progressBar.isShowing()) { progressBar.dismiss(); } if (url.startsWith("mailto:") || url.startsWith("geo:") || url.startsWith("tel:")) { Intent intent = new Intent (Intent.ACTION_VIEW, Uri.parse(url)); startActivity(intent); } } } public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_BACK) &amp;&amp; webview.canGoBack()) { webview.goBack(); return true; } if (keyCode == KeyEvent.KEYCODE_SEARCH) { Intent z = new Intent(this, Search.class); startActivity(z); } return super.onKeyDown(keyCode, event); } public boolean onCreateOptionsMenu (Menu menu) { super.onCreateOptionsMenu(menu); MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); return true; } @Override public boolean onOptionsItemSelected (MenuItem item) { switch (item.getItemId()) { case R.id.home: Intent m = new Intent(this, Home.class); startActivity(m); return true; case R.id.refresh: webview.reload(); Toast.makeText(this, "Refreshing...", Toast.LENGTH_SHORT).show(); return true; } return false; } public void onStop() { super.onStop(); CookieSyncManager.getInstance().sync(); } } </code></pre>
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