75 lines
2.4 KiB
Kotlin
75 lines
2.4 KiB
Kotlin
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2017 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.util.AttributeSet
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abstract class ComponentPickerPreference(context: Context, attrs: AttributeSet? = null) : ThemedListPreference(context, attrs) {
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protected val packageManager: PackageManager = context.packageManager
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init {
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setup()
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}
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override fun getSummary(): CharSequence {
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if (isNoneValue(value)) return noneEntry
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return entry
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}
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protected abstract val intentAction: String
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protected abstract val noneEntry: String
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protected abstract fun getComponentName(info: ResolveInfo): ComponentName
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protected abstract fun resolve(queryIntent: Intent): List<ResolveInfo>
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private fun setup() {
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val queryIntent = Intent(intentAction)
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val infoList = resolve(queryIntent)
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val infoListSize = infoList.size
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val entries = arrayOfNulls<CharSequence>(infoListSize + 1)
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val values = arrayOfNulls<CharSequence>(infoListSize + 1)
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entries[0] = noneEntry
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values[0] = ""
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for (i in 0..infoListSize - 1) {
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val info = infoList[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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entryValues = values
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}
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companion object {
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fun isNoneValue(value: String?): Boolean {
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return value.isNullOrEmpty() || "none" == value
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}
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}
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}
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