81 lines
2.7 KiB
Java
81 lines
2.7 KiB
Java
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2015 Mariotaku Lee <mariotaku.lee@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.mariotaku.twidere.preference;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.text.TextUtils;
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import android.util.AttributeSet;
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import java.util.List;
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public abstract class ComponentPickerPreference extends ThemedListPreference {
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protected final PackageManager packageManager;
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public ComponentPickerPreference(final Context context) {
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this(context, null);
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}
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public ComponentPickerPreference(final Context context, final AttributeSet attrs) {
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super(context, attrs);
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packageManager = context.getPackageManager();
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init();
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}
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@Override
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public CharSequence getSummary() {
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if (isNoneValue(getValue())) return getNoneEntry();
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return super.getSummary();
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}
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protected abstract String getIntentAction();
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protected abstract String getNoneEntry();
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private void init() {
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final Intent queryIntent = new Intent(getIntentAction());
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final List<ResolveInfo> infoList = resolve(queryIntent);
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final int infoListSize = infoList.size();
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final CharSequence[] entries = new CharSequence[infoListSize + 1], values = new CharSequence[infoListSize + 1];
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entries[0] = getNoneEntry();
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values[0] = "";
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for (int i = 0; i < infoListSize; i++) {
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final ResolveInfo info = infoList.get(i);
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entries[i + 1] = info.loadLabel(packageManager);
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values[i + 1] = getComponentName(info).flattenToString();
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}
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setEntries(entries);
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setEntryValues(values);
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}
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protected abstract ComponentName getComponentName(ResolveInfo info);
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protected abstract List<ResolveInfo> resolve(Intent queryIntent);
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public static boolean isNoneValue(final String value) {
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return TextUtils.isEmpty(value) || "none".equals(value);
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}
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}
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