77 lines
2.7 KiB
Kotlin
77 lines
2.7 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.Context
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import android.os.AsyncTask
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import android.os.AsyncTask.Status
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import androidx.preference.Preference
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import android.util.AttributeSet
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import org.mariotaku.chameleon.ChameleonUtils
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import org.mariotaku.ktextension.dismissDialogFragment
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import org.mariotaku.twidere.activity.iface.IBaseActivity
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import org.mariotaku.twidere.fragment.ProgressDialogFragment
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import java.lang.ref.WeakReference
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abstract class AsyncTaskPreference(context: Context, attrs: AttributeSet? = null) :
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Preference(context, attrs) {
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private var task: InternalTask? = null
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override fun onClick() {
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if (task?.status != Status.RUNNING) {
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task = InternalTask(this).apply { execute() }
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}
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}
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protected abstract fun doInBackground()
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private class InternalTask(preference: AsyncTaskPreference) : AsyncTask<Any, Any, Unit>() {
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private val preferenceRef = WeakReference<AsyncTaskPreference>(preference)
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override fun doInBackground(vararg args: Any) {
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val preference = preferenceRef.get() ?: return
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preference.doInBackground()
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}
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override fun onPostExecute(result: Unit) {
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val context = preferenceRef.get()?.context ?: return
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val activity = ChameleonUtils.getActivity(context) as? IBaseActivity<*> ?: return
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activity.executeAfterFragmentResumed {
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it.supportFragmentManager.dismissDialogFragment(FRAGMENT_TAG)
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}
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}
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override fun onPreExecute() {
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val context = preferenceRef.get()?.context ?: return
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val activity = ChameleonUtils.getActivity(context) as? IBaseActivity<*> ?: return
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activity.executeAfterFragmentResumed {
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ProgressDialogFragment.show(it.supportFragmentManager, FRAGMENT_TAG)
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}
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}
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companion object {
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private const val FRAGMENT_TAG = "task_progress"
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}
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}
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}
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