我有一个AppCompatActivity和一个PreferenceFragment，但在de AppCompatActivity的onCreate上，PreferenceFragment不会膨胀。代码和错误：
我不知道是否需要导入不同的内容或获取其他库或使用PreferenceFragmentCompat，但我认为它是相同的。
import android.app.ProgressDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.preference.CheckBoxPreference;
import android.preference.EditTextPreference;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.BaseAdapter;
import com.google.analytics.tracking.android.EasyTracker;
import com.leucotron.softphone.android.R;
import com.leucotron.softphone.android.service.JService;
public class JAccountPreference extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_account_preference);//Error in here
setSupportActionBar((Toolbar) findViewById(R.id.tool_bar));
getSupportActionBar().setTitle("");
getSupportActionBar().setIcon(R.drawable.app_logo);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_action_back);
getFragmentManager().beginTransaction().replace(R.id.fragment_account_preference, new AccountPreferenceFragment()).commit();
}
public static class AccountPreferenceFragment extends PreferenceFragment implements Preference.OnPreferenceChangeListener, SharedPreferences.OnSharedPreferenceChangeListener, ServiceConnection, Runnable {
private JService mService;
private boolean serviceIsBind;
private ServiceConnection mConnection = this;
private ProgressDialog progressDialog;
private CheckBoxPreference accountActivated;
private CheckBoxPreference accountShowPassword;
private EditTextPreference accountUser;
private EditTextPreference accountPassword;
private EditTextPreference accountDomain;
private EditTextPreference accountPort;
private String stringTeste;
private SharedPreferences mSharedPreferences;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.account_preference);
mSharedPreferences = PreferenceManager
.getDefaultSharedPreferences(getActivity());
accountActivated = (CheckBoxPreference) findPreference("pref_sip_activate_register");
accountShowPassword = (CheckBoxPreference) findPreference("pref_sip_show_password");
accountUser = (EditTextPreference) findPreference("pref_sip_user");
accountPassword = (EditTextPreference) findPreference("pref_sip_password");
accountDomain = (EditTextPreference) findPreference("pref_sip_domain");
accountPort = (EditTextPreference) findPreference("pref_sip_port");
if (accountPort.getText() == null || accountPort.getText().equals("")) {
accountPort.setText("5060");
}
setSummaryFields(accountUser, accountUser.getText());
setSummaryFields(accountPassword, accountPassword.getText());
setSummaryFields(accountDomain, accountDomain.getText());
setSummaryFields(accountPort, accountPort.getText());
//accountActivated.setOnPreferenceChangeListener(this);
accountUser.setOnPreferenceChangeListener(this);
accountPassword.setOnPreferenceChangeListener(this);
accountDomain.setOnPreferenceChangeListener(this);
accountPort.setOnPreferenceChangeListener(this);
setFieldsEnable(!accountActivated.isChecked());
accountActivated.setEnabled(validateValues());
progressDialog = new ProgressDialog(getActivity());
accountShowPassword.setChecked(false);
if (!serviceIsBind) {
Class<JService> serviceClass = JService.class;
getActivity().bindService(new Intent(getActivity(), serviceClass),
mConnection, Context.BIND_AUTO_CREATE);
serviceIsBind = true;
}
}
xml文件：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.myproject.JAccountPreference">
<include layout="@layout/toolbar" />
<fragment class="com.myproject.JAccountPreference$AccountPreferenceFragment"
android:id="@+id/fragment_account_preference"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="3dp"
android:background="@color/primary_color"
android:textColor="@android:color/white"
android:textSize="12sp"
tools:ignore="HardcodedText" />
错误：
FATAL EXCEPTION: main
Process: com.myproject, PID: 31728
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myproject/com.myproject.JAccountPreference}: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2314)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388)
at android.app.ActivityThread.access$800(ActivityThread.java:148)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5312)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696)
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:256)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
at com.leucotron.softphone.android.preference.JAccountPreference.onCreate(JAccountPreference.java:37)
at android.app.Activity.performCreate(Activity.java:5953)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1128)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2267)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388)
at android.app.ActivityThread.access$800(ActivityThread.java:148)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5312)
at java.lang.reflect.Method.invoke(Native Method)
答案 0 :(得分：0)
首先将您的preferenceFragment放在课外 第二，你可以在活动中的xml布局中添加prefrencefragment