PhoneGAP采用移动Javascript+html5框架开发移动程序入门源码

package com.phonegap.facebook; import java.io.IOException; import java.net.MalformedURLException; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.util.Log; import com.facebook.android.DialogError; import com.facebook.android.Facebook; import com.facebook.android.Facebook.DialogListener; import com.facebook.android.FacebookError; import com.phonegap.api.Plugin; import com.phonegap.api.PluginResult; public class ConnectPlugin extends Plugin { Facebook facebook; String userId; //used for dialog auth public String[] permissions = new String[] {}; public String callbackId; @Override public PluginResult execute(String action, JSONArray args, final String callbackId) { PluginResult pr = new PluginResult(PluginResult.Status.NO_RESULT); pr.setKeepCallback(true); if (action.equals("init")) { try { facebook = new Facebook(args.getString(0)); Log.d("PhoneGapLog", "reauthorize"); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this.ctx); String access_token = prefs.getString("access_token", null); Long expires = prefs.getLong("access_expires", -1); if (access_token != null && expires != -1) { this.facebook.setAccessToken(access_token); this.facebook.setAccessExpires(expires); try { JSONObject o = new JSONObject(this.facebook.request("/me")); this.userId = o.getString("id"); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(facebook.isSessionValid() && this.userId != null) { return new PluginResult(PluginResult.Status.OK, this.getResponse()); } else { return new PluginResult(PluginResult.Status.NO_RESULT); } } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); return new PluginResult(PluginResult.Status.ERROR, "Invalid JSON args used. expected a string as the first arg."); } } else if (action.equals("login")) { if (facebook != null) { if (facebook.isSessionValid()) { Log.d("FB", "Session already valid"); pr = new PluginResult(PluginResult.Status.OK, getResponse()); } else { final ConnectPlugin me = this; String[] permissions = new String[args.length()]; try { for (int i=0; i<args.length(); i++) { permissions[i] = args.getString(i); } } catch (JSONException e1) { // TODO Auto-generated catch block e1.printStackTrace(); return new PluginResult(PluginResult.Status.ERROR, "Invalid JSON args used. Expected a string array of permissions."); } this.ctx.setActivityResultCallback(this); this.permissions = permissions; this.callbackId = callbackId; Runnable runnable = new Runnable() { public void run() { me.facebook.authorize((Activity)me.ctx, me.permissions, new AuthorizeListener(me)); }; }; this.ctx.runOnUiThread(runnable); } } else { pr = new PluginResult(PluginResult.Status.ERROR, "Must call FB.init before FB.login"); } } else if (action.equals("logout")) { if (facebook != null) { try { facebook.logout(this.ctx); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this.ctx); prefs.edit().putLong("access_expires", -1).commit(); prefs.edit().putString("access_token", null).commit(); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); pr = new PluginResult(PluginResult.Status.MALFORMED_URL_EXCEPTION, "Error logging out."); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); pr = new PluginResult(PluginResult.Status.IO_EXCEPTION, "Error logging out."); } pr = new PluginResult(PluginResult.Status.OK, getResponse()); } } else if (action.equals("getLoginStatus")) { if (facebook != null) { pr = new PluginResult(PluginResult.Status.OK, getResponse()); } } return pr; } public static final String SINGLE_SIGN_ON_DISABLED = "service_disabled"; @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); facebook.authorizeCallback(requestCode, resultCode, data); } public JSONObject getResponse() { String response = "{"+ " \"status\": \""+(facebook.isSessionValid() ? "connected" : "unknown")+"\","+ " \"session\": {"+ " \"access_token\": \""+facebook.getAccessToken()+"\","+ " \"expires\": \""+facebook.getAccessExpires()+"\","+ " \"secret\": \"9e6c510c087d9367cf0f52034acf5954\","+ " \"session_key\": true,"+ " \"sig\": \"...\","+ " \"uid\": \""+this.userId+"\""+ " }"+ "}"; try { return new JSONObject(response); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } return new JSONObject(); } class AuthorizeListener implements DialogListener { final ConnectPlugin fba; public AuthorizeListener(ConnectPlugin fba){ super(); this.fba = fba; } public void onComplete(Bundle values) { // Handle a successful login String token = this.fba.facebook.getAccessToken(); long token_expires = this.fba.facebook.getAccessExpires(); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this.fba.ctx); prefs.edit().putLong("access_expires", token_expires).commit(); prefs.edit().putString("access_token", token).commit(); Log.d("FB", "authorized"); Log.d("PhoneGapLog", values.toString()); try { JSONObject o = new JSONObject(this.fba.facebook.request("/me")); this.fba.userId = o.getString("id"); this.fba.success(getResponse(), this.fba.callbackId); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void onFacebookError(FacebookError e) { Log.d("FB", "facebook error"); this.fba.error("Facebook error: " + e.getMessage(), callbackId); } public void onError(DialogError e) { Log.d("FB", "other error"); this.fba.error("Dialog error: " + e.getMessage(), this.fba.callbackId); } public void onCancel() { Log.d("FB", "cancel"); this.fba.error("Cancelled", this.fba.callbackId); } } }