我正在尝试将工具栏添加到AppCompatPreferenceActivity，但我不知道该怎么做。
你能告诉我如何吗？
第一个复制appcompatpatpatpreferenceactivity to您的项目。
这样的使用：
public class SettingsActivity extends AppCompatPreferenceActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setupActionBar();
}
private void setupActionBar() {
Toolbar toolbar;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
ViewGroup root = (ViewGroup) findViewById(android.R.id.list).getParent().getParent().getParent();
toolbar = (Toolbar) LayoutInflater.from(this).inflate(R.layout.view_toolbar, root, false);
root.addView(toolbar, 0);
} else {
ViewGroup root = (ViewGroup) findViewById(android.R.id.content);
ListView content = (ListView) root.getChildAt(0);
root.removeAllViews();
toolbar = (Toolbar) LayoutInflater.from(this).inflate(R.layout.view_toolbar, root, false);
int height;
TypedValue tv = new TypedValue();
if (getTheme().resolveAttribute(R.attr.actionBarSize, tv, true)) {
height = TypedValue.complexToDimensionPixelSize(tv.data, getResources().getDisplayMetrics());
} else {
height = toolbar.getHeight();
}
content.setPadding(0, height, 0, 0);
root.addView(content);
root.addView(toolbar);
}
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
}
这不是一个非常优雅的解决方案，但可以正常工作。在姜饼和棒棒糖上测试。
尝试以下：
public class SettingsActivity extends AppCompatPreferenceActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout root = (LinearLayout) findViewById(android.R.id.list).getParent().getParent().getParent();
Toolbar toolbar = (Toolbar) LayoutInflater.from(this).inflate(R.layout.toolbar_settings, root, false);
root.addView(toolbar, 0);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
}
编辑
AppCompatPatpatPreferenceActivity是Supprt V7的演示类别：
https://android.googlesource.com/platform/develform//nougat-release/samples/support7demos/src/src/com/com/com/complame/android/android/android/android/supportv7/
i解决了此提出主题为Androdmanifest上的活动
android:theme="@style/Theme.AppCompat.Light"
使用优先段，您可以在活动中喜欢这样做：
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new MyPreferenceFragment()).commit();
和类似的mypreferenceFragment：
public class MyPreferenceFragment extends PreferenceFragment{
@Override
public void onCreate(final Bundle savedInstanceState){
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.settings);
}
}
希望这有帮助！
这是我的工具键
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:elevation="@dimen/appbar_elevation"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
并在setupactionbar（）开头添加以下代码行，将在运行时添加工具栏。
getLayoutInflater().inflate(R.layout.toolbar,
(ViewGroup)findViewById(android.R.id.content));
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
这项工作对我来说是友善的！
感谢Galdin。
您可以使用Android Studio生成设置活动，并且可以自动生成这样的示例代码：
import android.annotation.TargetApi;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.RingtonePreference;
import android.support.v7.app.ActionBar;
import android.text.TextUtils;
import android.view.MenuItem;
import java.util.List;
/**
* A {@link PreferenceActivity} that presents a set of application settings. On
* handset devices, settings are presented as a single list. On tablets,
* settings are split by category, with category headers shown to the left of
* the list of settings.
* <p>
* See <a href="http://developer.android.com/design/patterns/settings.html">
* Android Design: Settings</a> for design guidelines and the <a
* href="http://developer.android.com/guide/topics/ui/settings.html">Settings
* API Guide</a> for more information on developing a Settings UI.
*/
public class SettingsActivity extends AppCompatPreferenceActivity {
/**
* A preference value change listener that updates the preference's summary
* to reflect its new value.
*/
private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener =
new Preference.OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange ( Preference preference, Object value ) {
String stringValue = value.toString();
if ( preference instanceof ListPreference ) {
// For list preferences, look up the correct display value in
// the preference's 'entries' list.
ListPreference listPreference = ( ListPreference ) preference;
int index = listPreference.findIndexOfValue( stringValue );
// Set the summary to reflect the new value.
preference.setSummary( index >= 0 ? listPreference.getEntries()[ index ] : null );
}
else if ( preference instanceof RingtonePreference ) {
// For ringtone preferences, look up the correct display value
// using RingtoneManager.
if ( TextUtils.isEmpty( stringValue ) ) {
// Empty values correspond to 'silent' (no ringtone).
preference.setSummary( R.string.pref_ringtone_silent );
}
else {
Ringtone ringtone =
RingtoneManager.getRingtone( preference.getContext(), Uri.parse( stringValue ) );
if ( ringtone == null ) {
// Clear the summary if there was a lookup error.
preference.setSummary( null );
}
else {
// Set the summary to reflect the new ringtone display
// name.
String name = ringtone.getTitle( preference.getContext() );
preference.setSummary( name );
}
}
}
else {
// For all other preferences, set the summary to the value's
// simple string representation.
preference.setSummary( stringValue );
}
return true;
}
};
/**
* Helper method to determine if the device has an extra-large screen. For
* example, 10" tablets are extra-large.
*/
private static boolean isXLargeTablet ( Context context ) {
return ( context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK ) >=
Configuration.SCREENLAYOUT_SIZE_XLARGE;
}
/**
* Binds a preference's summary to its value. More specifically, when the
* preference's value is changed, its summary (line of text below the
* preference title) is updated to reflect the value. The summary is also
* immediately updated upon calling this method. The exact display format is
* dependent on the type of preference.
*
* @see #sBindPreferenceSummaryToValueListener
*/
private static void bindPreferenceSummaryToValue ( Preference preference ) {
// Set the listener to watch for value changes.
preference.setOnPreferenceChangeListener( sBindPreferenceSummaryToValueListener );
// Trigger the listener immediately with the preference's
// current value.
sBindPreferenceSummaryToValueListener.onPreferenceChange( preference,
PreferenceManager.getDefaultSharedPreferences(
preference.getContext() )
.getString( preference.getKey(),
"" ) );
}
@Override
protected void onCreate ( Bundle savedInstanceState ) {
super.onCreate( savedInstanceState );
setupActionBar();
}
/**
* Set up the {@link android.app.ActionBar}, if the API is available.
*/
private void setupActionBar () {
ActionBar actionBar = getSupportActionBar();
if ( actionBar != null ) {
// Show the Up button in the action bar.
actionBar.setDisplayHomeAsUpEnabled( true );
actionBar.setHomeButtonEnabled( true );
}
}
@Override
public boolean onOptionsItemSelected ( MenuItem item ) {
switch ( item.getItemId() ) {
case android.R.id.home:
finish();
}
return super.onOptionsItemSelected( item );
}
/** {@inheritDoc} */
@Override
public boolean onIsMultiPane () {
return isXLargeTablet( this );
}
/** {@inheritDoc} */
@Override
@TargetApi ( Build.VERSION_CODES.HONEYCOMB )
public void onBuildHeaders ( List< Header > target ) {
loadHeadersFromResource( R.xml.pref_headers, target );
}
/**
* This method stops fragment injection in malicious applications.
* Make sure to deny any unknown fragments here.
*/
protected boolean isValidFragment ( String fragmentName ) {
return PreferenceFragment.class.getName().equals( fragmentName ) ||
GeneralPreferenceFragment.class.getName().equals( fragmentName ) ||
DataSyncPreferenceFragment.class.getName().equals( fragmentName ) ||
NotificationPreferenceFragment.class.getName().equals( fragmentName );
}
/**
* This fragment shows general preferences only. It is used when the
* activity is showing a two-pane settings UI.
*/
@TargetApi ( Build.VERSION_CODES.HONEYCOMB )
public static class GeneralPreferenceFragment extends PreferenceFragment {
@Override
public void onCreate ( Bundle savedInstanceState ) {
super.onCreate( savedInstanceState );
addPreferencesFromResource( R.xml.pref_general );
setHasOptionsMenu( true );
// Bind the summaries of EditText/List/Dialog/Ringtone preferences
// to their values. When their values change, their summaries are
// updated to reflect the new value, per the Android Design
// guidelines.
bindPreferenceSummaryToValue( findPreference( "example_text" ) );
bindPreferenceSummaryToValue( findPreference( "example_list" ) );
}
@Override
public boolean onOptionsItemSelected ( MenuItem item ) {
int id = item.getItemId();
if ( id == android.R.id.home ) {
startActivity( new Intent( getActivity(), SettingsActivity.class ) );
return true;
}
return super.onOptionsItemSelected( item );
}
}
/**
* This fragment shows notification preferences only. It is used when the
* activity is showing a two-pane settings UI.
*/
@TargetApi ( Build.VERSION_CODES.HONEYCOMB )
public static class NotificationPreferenceFragment extends PreferenceFragment {
@Override
public void onCreate ( Bundle savedInstanceState ) {
super.onCreate( savedInstanceState );
addPreferencesFromResource( R.xml.pref_notification );
setHasOptionsMenu( true );
// Bind the summaries of EditText/List/Dialog/Ringtone preferences
// to their values. When their values change, their summaries are
// updated to reflect the new value, per the Android Design
// guidelines.
bindPreferenceSummaryToValue( findPreference( "notifications_new_message_ringtone" ) );
}
@Override
public boolean onOptionsItemSelected ( MenuItem item ) {
int id = item.getItemId();
if ( id == android.R.id.home ) {
startActivity( new Intent( getActivity(), SettingsActivity.class ) );
return true;
}
return super.onOptionsItemSelected( item );
}
}
/**
* This fragment shows data and sync preferences only. It is used when the
* activity is showing a two-pane settings UI.
*/
@TargetApi ( Build.VERSION_CODES.HONEYCOMB )
public static class DataSyncPreferenceFragment extends PreferenceFragment {
@Override
public void onCreate ( Bundle savedInstanceState ) {
super.onCreate( savedInstanceState );
addPreferencesFromResource( R.xml.pref_data_sync );
setHasOptionsMenu( true );
// Bind the summaries of EditText/List/Dialog/Ringtone preferences
// to their values. When their values change, their summaries are
// updated to reflect the new value, per the Android Design
// guidelines.
bindPreferenceSummaryToValue( findPreference( "sync_frequency" ) );
}
@Override
public boolean onOptionsItemSelected ( MenuItem item ) {
int id = item.getItemId();
if ( id == android.R.id.home ) {
startActivity( new Intent( getActivity(), SettingsActivity.class ) );
return true;
}
return super.onOptionsItemSelected( item );
}
}
}
appcompatpatpreferenceactivity.class众所周知：
/**
* A {@link android.preference.PreferenceActivity} which implements and proxies the necessary calls
* to be used with AppCompat.
*/
显然，appcompatpatpatreferenceaceaceaceaceactivity.class假设是compat的硫酸类。
当您使用工具栏（例如工具栏之类的偏好性）来解决一些兼容问题时，您应该考虑使用它。就像完美的@DavidVávra给出的Anwser一样，他的代码可能会扮演所有的技巧。
您一直在询问如何设置此偏好活动（我正在寻找...否则我不会坐在stackoverflow上）
所以我读了此页https://developer.android.com/reference/android/preference/preferenceactivity.html和javadoc给出的两页。我认为向AppCompatPatpatpreferenceeactivity的儿童类客户提供的方式是这样的：
如果您只想使自己的**设置看起来像某种优先范围的外观，则不应覆盖此方法" on Buildheaders（）"
/** {@inheritDoc} */
@Override
@TargetApi ( Build.VERSION_CODES.HONEYCOMB )
public void onBuildHeaders ( List< Header > target ) {
loadHeadersFromResource( R.xml.pref_headers, target );
}
fyi Pref_headers用法由页面https://developer.android.com/referenc./reference/android/preference/preferenceactivity.html
并在您的OnCreate（）方法中添加此行。
addPreferencesFromResource( R.xml.pref_setting );
然后转到您的首选项XML（该页面上也使用）。运行您的应用程序，您会发现它有效。或者只是添加与您的应用相关的一些逻辑代码。