我正在尝试在Android应用中实施Salesforce OAuth。 我使用Salesforce Mobile SDK来实现它。我还在我的项目中添加了“SalesforceSDK-1.0.1.jar”。
MainActivity.java
package com.android.templateapp;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.salesforce.androidsdk.app.ForceApp;
import com.salesforce.androidsdk.rest.ClientManager;
import com.salesforce.androidsdk.rest.ClientManager.LoginOptions;
import com.salesforce.androidsdk.rest.ClientManager.RestClientCallback;
import com.salesforce.androidsdk.rest.RestClient;
public class MainActivity extends Activity {
private RestClient client;
private ArrayAdapter<String> listAdapter;
private static String TAG = "TemplateApp";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.v(TAG," onCreate of Main Activity");
// Setup view
setContentView(R.layout.main);
}
@Override
public void onResume() {
Log.v(TAG," ******* default onResume of Main Activity");
super.onResume();
findViewById(R.id.root).setVisibility(View.INVISIBLE);
Log.v(TAG," ******* default onResume - View.INVISIBLE");
// Login options
String accountType = ForceApp.APP.getAccountType();
Log.v(TAG," ******* default onResume - accountType ::"+accountType);
LoginOptions loginOptions = new LoginOptions(
"https://login.salesforce.com/", // login host is chosen by user through the server picker
ForceApp.APP.getPasscodeHash(),
getString(R.string.oauth_callback_url),
getString(R.string.oauth_client_id),
new String[] {"api"});
Log.v(TAG," ******* default onResume - loginOptions ::"+loginOptions);
// Get a rest client
new ClientManager(this, accountType, loginOptions).getRestClient(this,
new RestClientCallback() {
@Override
public void authenticatedRestClient(RestClient client) {
// Show everything
findViewById(R.id.root).setVisibility(View.VISIBLE);
//User is authenticated, insert Application logic here
}
});
}
protected LoginOptions getLoginOptions() {
Log.v(TAG," getLoginOptions of Main Activity");
LoginOptions loginOptions = new LoginOptions(
null, // login host is chosen by user through the server picker
ForceApp.APP.getPasscodeHash(),
getString(R.string.oauth_callback_url),
getString(R.string.oauth_client_id),
new String[] {"api"});
return loginOptions;
}
public void onResume(RestClient client) {
Log.v(TAG," onResume of Main Activity");
// Keeping reference to rest client
this.client = client;
// Show everything
findViewById(R.id.root).setVisibility(View.VISIBLE);
}
/**
* Called when "Logout" button is clicked.
*
* @param v
*/
public void onLogoutClick(View v) {
ForceApp.APP.logout(this);
}
/**
* Called when "Clear" button is clicked.
*
* @param v
*/
public void onClearClick(View v) {
listAdapter.clear();
}
/**
* Called when "Fetch Contacts" button is clicked
*
* @param v
* @throws UnsupportedEncodingException
*/
public void onFetchContactsClick(View v) throws UnsupportedEncodingException {
sendRequest("SELECT Name FROM Contact");
}
public void onFetchAccountsClick(View v) throws UnsupportedEncodingException {
sendRequest("SELECT Name FROM Account");
}
private void sendRequest(String soql) throws UnsupportedEncodingException {
RestRequest restRequest = RestRequest.getRequestForQuery(getString(R.string.api_version), soql);
client.sendAsync(restRequest, new AsyncRequestCallback() {
@Override
public void onSuccess(RestRequest request, RestResponse result) {
try {
listAdapter.clear();
JSONArray records = result.asJSONObject().getJSONArray("records");
for (int i = 0; i < records.length(); i++) {
listAdapter.add(records.getJSONObject(i).getString("Name"));
}
} catch (Exception e) {
onError(e);
}
}
@Override
public void onError(Exception exception) {
Toast.makeText(MainActivity.this,
MainActivity.this.getString(ForceApp.APP.getSalesforceR().stringGenericError(), exception.toString()),
Toast.LENGTH_LONG).show();
}
});
}
}
我在logcat中遇到以下错误：
12-18 17:47:04.696: E/Trace(1586): error opening trace file: No such file or directory (2)
12-18 17:47:05.256: V/TemplateApp(1586): onCreate of Main Activity
12-18 17:47:05.526: V/TemplateApp(1586): ******* default onResume of Main Activity
12-18 17:47:05.526: V/TemplateApp(1586): ******* default onResume - View.INVISIBLE
12-18 17:47:05.536: D/AndroidRuntime(1586): Shutting down VM
12-18 17:47:05.536: W/dalvikvm(1586): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
12-18 17:47:05.546: E/AndroidRuntime(1586): FATAL EXCEPTION: main
12-18 17:47:05.546: E/AndroidRuntime(1586): java.lang.RuntimeException: Unable to resume activity {com.android.templateapp/com.android.templateapp.MainActivity}: java.lang.NullPointerException
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2575)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2603)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2089)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread.access$600(ActivityThread.java:130)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.os.Handler.dispatchMessage(Handler.java:99)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.os.Looper.loop(Looper.java:137)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread.main(ActivityThread.java:4745)
12-18 17:47:05.546: E/AndroidRuntime(1586): at java.lang.reflect.Method.invokeNative(Native Method)
12-18 17:47:05.546: E/AndroidRuntime(1586): at java.lang.reflect.Method.invoke(Method.java:511)
12-18 17:47:05.546: E/AndroidRuntime(1586): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
12-18 17:47:05.546: E/AndroidRuntime(1586): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
12-18 17:47:05.546: E/AndroidRuntime(1586): at dalvik.system.NativeStart.main(Native Method)
12-18 17:47:05.546: E/AndroidRuntime(1586): Caused by: java.lang.NullPointerException
12-18 17:47:05.546: E/AndroidRuntime(1586): at com.salesforce.androidsdk.app.ForceApp.getAccountType(ForceApp.java:175)
12-18 17:47:05.546: E/AndroidRuntime(1586): at com.android.templateapp.MainActivity.onResume(MainActivity.java:85)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1184)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.Activity.performResume(Activity.java:5082)
12-18 17:47:05.546: E/AndroidRuntime(1586): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2565)
12-18 17:47:05.546: E/AndroidRuntime(1586): ... 12 more
答案 0 :(得分：2)
我想你没有设置扩展ForceApp并在AndroidManifest.xml文件中注册的应用程序类。
答案 1 :(得分：0)
请参阅以下网址，以便使用oAuth进行身份验证
http://wiki.developerforce.com/page/Getting_Started_with_the_Mobile_SDK_for_Android#Authentication
您应该授予对salesforce组织的远程访问权限，以便访问移动应用程序。您应该在应用程序中指定远程访问使用者密钥以及oAuth重定向URL＆amp; oauth登录域名网址。
答案 2 :(得分：0)
我发现同样的错误，而且超级网站的答案也有所帮助。 如果查看sample TemplateApp application，TemplateApp.java会扩展ForceApp。我可以通过将其添加到我的Manifest文件中来删除错误，如：
<application android:icon="@drawable/icon" android:label="@string/app_name" android:name=".TemplateApp">