我正在利用沉船活动的跳板,但当我们点上tw子时,它会发出集体举动。 我不知道为什么在不同的项目中采用相同的法典。 请帮助我。
Error Stack:
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.shopzilla.android.common/org.shopzilla.android.twitter.TwitterActivity}: java.lang.ClassCastException: android.app.Application
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.os.Handler.dispatchMessage(Handler.java:99)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.os.Looper.loop(Looper.java:123)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.ActivityThread.main(ActivityThread.java:3683)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at java.lang.reflect.Method.invokeNative(Native Method)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at java.lang.reflect.Method.invoke(Method.java:507)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at dalvik.system.NativeStart.main(Native Method)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): Caused by: java.lang.ClassCastException: android.app.Application
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at org.shopzilla.android.common.AbstractAsyncActivity.getApplicationContext(AbstractAsyncActivity.java:40)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at org.shopzilla.android.twitter.TwitterActivity.onCreate(TwitterActivity.java:53)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-09 15:05:34.086: ERROR/AndroidRuntime(1711): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
法典:
/*
* Copyright 2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.shopzilla.android.twitter;
import org.shopzilla.android.common.AbstractAsyncActivity;
import org.shopzilla.android.common.R;
import org.springframework.social.connect.ConnectionRepository;
import org.springframework.social.twitter.api.TwitterApi;
import org.springframework.social.twitter.connect.TwitterConnectionFactory;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
/**
* @author Roy Clarkson
*/
public class TwitterActivity extends AbstractAsyncActivity
{
protected static final String TAG = TwitterActivity.class.getSimpleName();
private ConnectionRepository _connectionRepository;
private TwitterConnectionFactory _connectionFactory;
//***************************************
// Activity methods
//***************************************
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.twitter_activity_layout);
_connectionRepository = getApplicationContext().getConnectionRepository();
_connectionFactory = getApplicationContext().getTwitterConnectionFactory();
}
@Override
public void onStart()
{
super.onStart();
if (isConnected())
{
showTwitterOptions();
}
else
{
showConnectOption();
}
}
//***************************************
// Private methods
//***************************************
private boolean isConnected()
{
return _connectionRepository.findPrimaryConnectionToApi(TwitterApi.class) != null;
}
private void disconnect()
{
_connectionRepository.removeConnectionsToProvider(_connectionFactory.getProviderId());
}
private void showConnectOption()
{
String[] options = {"Connect"};
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, options);
ListView listView = (ListView) this.findViewById(R.id.twitter_activity_options_list);
listView.setAdapter(arrayAdapter);
listView.setOnItemClickListener(
new AdapterView.OnItemClickListener()
{
public void onItemClick(AdapterView<?> parentView, View childView, int position, long id)
{
switch(position)
{
case 0:
displayTwitterAuthorization();
break;
default:
break;
}
}
}
);
}
private void showTwitterOptions()
{
String[] options = {"Disconnect", "View Profile", "Timeline", "Tweet", "Direct Message"};
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, options);
ListView listView = (ListView) this.findViewById(R.id.twitter_activity_options_list);
listView.setAdapter(arrayAdapter);
listView.setOnItemClickListener(
new AdapterView.OnItemClickListener()
{
public void onItemClick(AdapterView<?> parentView, View childView, int position, long id)
{
Intent intent;
switch(position)
{
case 0:
disconnect();
showConnectOption();
break;
case 1:
intent = new Intent();
intent.setClass(parentView.getContext(), TwitterProfileActivity.class);
startActivity(intent);
break;
case 2:
intent = new Intent();
intent.setClass(parentView.getContext(), TwitterTimelineActivity.class);
startActivity(intent);
break;
case 3:
intent = new Intent();
intent.setClass(parentView.getContext(), TwitterTweetActivity.class);
startActivity(intent);
break;
case 4:
intent = new Intent();
intent.setClass(parentView.getContext(), TwitterDirectMessageActivity.class);
startActivity(intent);
break;
default:
break;
}
}
}
);
}
private void displayTwitterAuthorization()
{
Intent intent = new Intent();
intent.setClass(this, TwitterWebOAuthActivity.class);
startActivity(intent);
finish();
}
}
摘要 Async Activities
/*
* Copyright 2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.shopzilla.android.common;
import android.app.Activity;
import android.app.ProgressDialog;
/**
* @author Roy Clarkson
* @author Pierre-Yves Ricau
*/
public abstract class AbstractAsyncActivity extends Activity implements AsyncActivity
{
protected static final String TAG = AbstractAsyncActivity.class.getSimpleName();
private ProgressDialog _progressDialog;
private boolean _destroyed = false;
//***************************************
// Activity methods
//***************************************
@Override
public MainApplication getApplicationContext()
{
return (MainApplication) super.getApplicationContext();
}
@Override
protected void onDestroy()
{
super.onDestroy();
_destroyed = true;
}
//***************************************
// Public methods
//***************************************
public void showLoadingProgressDialog()
{
this.showProgressDialog("Loading. Please wait...");
}
public void showProgressDialog(CharSequence message)
{
if (_progressDialog == null)
{
_progressDialog = new ProgressDialog(this);
_progressDialog.setIndeterminate(true);
}
_progressDialog.setMessage(message);
_progressDialog.show();
}
public void dismissProgressDialog()
{
if (_progressDialog != null && !_destroyed)
{
_progressDialog.dismiss();
}
}
}