错误夸大类开关ActionBarSherlock（InflateException） [英] Error inflating class switch, ActionBarSherlock (InflateException)
本文介绍了错误夸大类开关ActionBarSherlock（InflateException）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我遇到了一个错误的痛苦。我有一个SherlockFragmentActivity，至少有两个SherlockFragments。两者都使用onCreateView来膨胀xml文件。但是，LoginFragment有一个开关小部件：econ片段没有。如果我在econfragment.xml中添加一个开关小部件，则会导致相同类型的崩溃（而loginfragment被注释为不在实现中）。如果我从loginfragment中删除了开关小部件，RadioGroup会显示类似的错误-但是电子配给已具有一个无线电组，并且不会产生任何错误。以下是相关代码：
I'm running into a pain of an error. I have a SherlockFragmentActivity, and at least two SherlockFragments. Both use onCreateView to inflate an xml file. LoginFragment, however, has a switch widget: econ fragment does not. If I add a switch widget into econfragment.xml, that causes a crash of the same type (while loginfragment is commented out of implementation). If I remove the switch widget from loginfragment, a similar error shows up for RadioGroup - but econfragment already has a radio group and produces no errors. Here is the relevant code:
轮询：
import java.util.ArrayList;
import library.DatabaseHandler;
import org.json.JSONObject;
import com.actionbarsherlock.R;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.app.SherlockFragment;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.View.OnClickListener;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
public class Polling extends SherlockFragmentActivity {
private ViewPager mViewPager;
private TabsAdapter mTabsAdapter;
private final static String TAG = "21st Polling:";
private Button loginButton;
private Button registerButton;
private Switch rememberSwitch;
SharedPreferences sharedPreferences;
Toast toast;
public void loginReport(int responseCode) {
//if login succeeded
if (responseCode == 1) {
loginButton = (Button)findViewById(R.id.loginButton);
loginButton.setText("Log Out");
Context context = getApplicationContext();
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, "Logged in.", duration);
toast.show();
}
if (responseCode == 0) {
Context context = getApplicationContext();
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, "Incorrect username/password", duration);
toast.show();
}
if (responseCode == 2) {
//remove user from active sql db here rather than LoginFragment?!
Context context = getApplicationContext();
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, "Logged out", duration);
toast.show();
}
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.v(TAG, "onCreate");
mViewPager = new ViewPager(this);
mViewPager.setId(R.id.pager);
setContentView(mViewPager);
ActionBar bar = getSupportActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
bar.setDisplayShowTitleEnabled(false);
bar.setDisplayShowHomeEnabled(false);
mTabsAdapter = new TabsAdapter(this, mViewPager);
//mTabsAdapter.addTab(bar.newTab().setText(R.string.login),
//LoginFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.economics),
EconFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.elections),
ElectionsFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.politics),
PoliticsFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.science),
ScienceFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.finance),
FinanceFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.religion),
ReligionFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.military),
MilitaryFragment.class, null);
mTabsAdapter.addTab(bar.newTab().setText(R.string.international),
InternationalFragment.class, null);
//Log.v(TAG, (String)bar.getTabAt(0).getText());
}
public void login(int id)
{
JSONObject json_userJsonObject;
//DatabaseHandler db = new DatabaseHandler(getApplicationContext());
//JSONObject json_user = json.getJSONObject("user");
/*sharedPreferences.edit().putBoolean("user_logged_in", true).commit();*/
//startActivityForResult(new Intent(Polling.this, LOGIN_DESTINATION), LOGIN_REQUEST_CODE);
}
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
//outState.putInt("tab", getSupportActionBar().getSelectedNavigationIndex());
}
public void onResume() {
super.onResume();
Log.v(TAG, "onResume");
}
protected void onPause() {
super.onPause();
Log.d("Econ", "onpause");
}
public static class TabsAdapter extends FragmentPagerAdapter
implements ActionBar.TabListener, ViewPager.OnPageChangeListener {
private final Context mContext;
private final ActionBar mActionBar;
private final ViewPager mViewPager;
private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();
static final class TabInfo {
private final Class<?> clss;
private final Bundle args;
TabInfo(Class<?> _class, Bundle _args) {
clss = _class;
args = _args;
}
}
public TabsAdapter(SherlockFragmentActivity activity, ViewPager pager) {
super(activity.getSupportFragmentManager());
mContext = activity;
mActionBar = activity.getSupportActionBar();
mViewPager = pager;
mViewPager.setAdapter(this);
mViewPager.setOnPageChangeListener(this);
}
public void addTab(ActionBar.Tab tab, Class<?> clss, Bundle args) {
TabInfo info = new TabInfo(clss, args);
tab.setTag(info);
tab.setTabListener(this);
mTabs.add(info);
mActionBar.addTab(tab);
notifyDataSetChanged();
}
public int getCount() {
return mTabs.size();
}
public SherlockFragment getItem(int position) {
TabInfo info = mTabs.get(position);
return (SherlockFragment)Fragment.instantiate(mContext, info.clss.getName(), info.args);
}
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
public void onPageSelected(int position) {
mActionBar.setSelectedNavigationItem(position);
}
public void onPageScrollStateChanged(int state) {
}
public void onTabSelected(Tab tab, FragmentTransaction ft) {
mViewPager.setCurrentItem(tab.getPosition());
//Log.v(TAG, "clicked");
Object tag = tab.getTag();
for (int i=0; i<mTabs.size(); i++) {
if (mTabs.get(i) == tag) {
mViewPager.setCurrentItem(i);
}
}
}
public void onTabUnselected(Tab tab, FragmentTransaction ft) {}
public void onTabReselected(Tab tab, FragmentTransaction ft) {}
public void onTabReselected(Tab tab, android.app.FragmentTransaction ft) {}
public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) {}
}
LoginFragment：
LoginFragment:
import com.actionbarsherlock.R;
import com.actionbarsherlock.app.SherlockFragment;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
public class LoginFragment extends SherlockFragment {
Button loginButton;
TextView loginErrorMsg;
Polling activity;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
Log.v("x", "oncreateview");
View v = inflater.inflate(R.layout.loginfragment, container, false);
return v;
}
EconFragment：
EconFragment:
import com.actionbarsherlock.R;
import com.actionbarsherlock.app.SherlockFragment;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
public class EconFragment extends SherlockFragment {
private TableLayout questionContainer;
int pos = 0;
private String[] titles = {"The first title ", "hallo1","hallo2", "hallo3",
"hallo4", "hallo5","hallo6", "hallo7","hallo8", "hallo9"};
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
Log.v("Econ", "onCreateView");
View v = inflater.inflate(R.layout.econfragment, container, false);
questionContainer = (TableLayout) v.findViewById(R.id.questionContainer);
//bs
int leftMargin=5;
int topMargin=5;
int rightMargin=5;
int bottomMargin=5;
while (pos < 10) {
View question = inflater.inflate(R.layout.question, null);
question.setId(pos);
TextView title = (TextView) question.findViewById(R.id.questionTextView);
title.setText(titles[pos]);
Button charts = (Button) question.findViewById(R.id.chartsButton);
charts.setId(pos);
charts.setOnClickListener(chartsListener);
TableRow tr = (TableRow) question;
TableLayout.LayoutParams trParams = new TableLayout.LayoutParams(
TableLayout.LayoutParams.MATCH_PARENT,
TableLayout.LayoutParams.WRAP_CONTENT);
trParams.setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
tr.setLayoutParams(trParams);
Log.v("econ", "while loop");
questionContainer.addView(tr);
pos++;
}
return v;
}
和两个XML文件； loginfragment.xml和econfragment.xml：
And the two XML files; loginfragment.xml and econfragment.xml:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/loginScrollView">
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp" >
<ImageView
android:id="@+id/logoImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/logo"
android:contentDescription="@string/app_name"
/>
<TextView
android:id="@+id/demoTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/logDetails" android:gravity="center_horizontal|center">
</TextView>
<EditText
android:id="@+id/emailEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/loginHint"
android:imeOptions="actionNext"
android:inputType="textEmailAddress" android:padding="10dp"/>
<EditText
android:id="@+id/passEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/password"
android:imeOptions="actionDone"
android:inputType="textPassword" android:padding="10dp"/>
<Switch
android:id="@+id/rememberSwitch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/rememberDetails" android:padding="10dp" android:gravity="right"/>
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" >
<Button
android:id="@+id/registerButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="2"
android:padding="5dp"
android:text="@string/register" />
<Button
android:id="@+id/loginButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="2"
android:padding="5dp"
android:text="@string/login" />
</TableRow>
</TableLayout>
</ScrollView>
econfragment.xml：
econfragment.xml:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/scrollView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TableLayout
android:id="@+id/questionContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</TableLayout>
</ScrollView>
我是否应该做一些根本不同的事情？我应该注意，此错误 only 仅发生在Gingerbread或更低的版本上-例如，在ICS上运行良好。我使用ABS的全部目的是为了获得向后兼容性，所以我现在对此错误一无所知！
Is there something that I should be doing fundamentally differently? I should note that this error only occurs on Gingerbread or lower - it works perfectly fine on ICS, for example. The whole point of me using ABS is to get the backwards compatibility, so I'm a bit nonplussed with this error at the moment!
推荐答案
http://developer.android.com/reference/android/widget/ Switch.html
原因：API级别14
Since: API Level 14
Switch 小部件是在ICS中引入的。
The Switch widget was introduced in ICS.
这篇关于错误夸大类开关ActionBarSherlock（InflateException）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
