創建自定義EditTextPreference:
public class CustomEditTextPreference extends EditTextPreference {
public CustomEditTextPreference(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
public CustomEditTextPreference(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public CustomEditTextPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomEditTextPreference(Context context) {
super(context);
}
}
聲明它的使用偏好的XML文件:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<com.example.CustomEditTextPreference
android:key="test_key"
android:title="Title" />
</PreferenceScreen>
與下一行更新您的PreferenceFragmentCompat:
public class PrefFragment extends PreferenceFragmentCompat {
private static final String DIALOG_FRAGMENT_TAG =
"android.support.v7.preference.PreferenceFragment.DIALOG";
@Override
public void onCreatePreferences(Bundle bundle, String s) {
addPreferencesFromResource(R.xml.settings);
}
@Override
public void onDisplayPreferenceDialog(Preference preference) {
// check if dialog is already showing
if (getFragmentManager().findFragmentByTag(DIALOG_FRAGMENT_TAG) != null) {
return;
}
DialogFragment f = null;
if (preference instanceof CustomEditTextPreference) {
f = EditTextPreferenceDialog.newInstance(preference.getKey());
} else {
super.onDisplayPreferenceDialog(preference);
}
if (f != null) {
f.setTargetFragment(this, 0);
f.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
}
}
public static class EditTextPreferenceDialog extends EditTextPreferenceDialogFragmentCompat {
public static EditTextPreferenceDialog newInstance(String key) {
final EditTextPreferenceDialog
fragment = new EditTextPreferenceDialog();
final Bundle b = new Bundle(1);
b.putString(ARG_KEY, key);
fragment.setArguments(b);
return fragment;
}
@Override
protected void onBindDialogView(View view) {
super.onBindDialogView(view);
((EditText)view.findViewById(android.R.id.edit)).setFilters(new InputFilter[]{new NumericRangeFilter()});
}
}
}
如果你想使用更強大(*即。使用XML來設置屬性而不是從代碼*)版本的接受解決方案,我建議你看看我的解決方法'**有趣的事情**部分:https://github.com/Gericop/Android- Support-Preference-V7-Fix –
感謝您的鏈接,我需要做一些屬性本身不會應付,但造型元素將會有用。令人驚訝的是,這個支持庫損壞了多少。 – CodeChimp
我爲Google報告了一個錯誤,請將它列出來以便處理: https://code.google.com/p/android/issues/detail?id=233169&q=EditTextPreference&colspec=ID%20Status%20Priority%20Owner %20Summary%20Stars%20Reporter%20Opened –