Twidere-App-Android-Twitter.../twidere/src/main/kotlin/org/mariotaku/twidere/preference/AsyncTaskPreference.kt

77 lines
2.7 KiB
Kotlin

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2017 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.preference
import android.content.Context
import android.os.AsyncTask
import android.os.AsyncTask.Status
import androidx.preference.Preference
import android.util.AttributeSet
import org.mariotaku.chameleon.ChameleonUtils
import org.mariotaku.ktextension.dismissDialogFragment
import org.mariotaku.twidere.activity.iface.IBaseActivity
import org.mariotaku.twidere.fragment.ProgressDialogFragment
import java.lang.ref.WeakReference
abstract class AsyncTaskPreference(context: Context, attrs: AttributeSet? = null) :
Preference(context, attrs) {
private var task: InternalTask? = null
override fun onClick() {
if (task?.status != Status.RUNNING) {
task = InternalTask(this).apply { execute() }
}
}
protected abstract fun doInBackground()
private class InternalTask(preference: AsyncTaskPreference) : AsyncTask<Any, Any, Unit>() {
private val preferenceRef = WeakReference<AsyncTaskPreference>(preference)
override fun doInBackground(vararg args: Any) {
val preference = preferenceRef.get() ?: return
preference.doInBackground()
}
override fun onPostExecute(result: Unit) {
val context = preferenceRef.get()?.context ?: return
val activity = ChameleonUtils.getActivity(context) as? IBaseActivity<*> ?: return
activity.executeAfterFragmentResumed {
it.supportFragmentManager.dismissDialogFragment(FRAGMENT_TAG)
}
}
override fun onPreExecute() {
val context = preferenceRef.get()?.context ?: return
val activity = ChameleonUtils.getActivity(context) as? IBaseActivity<*> ?: return
activity.executeAfterFragmentResumed {
ProgressDialogFragment.show(it.supportFragmentManager, FRAGMENT_TAG)
}
}
companion object {
private const val FRAGMENT_TAG = "task_progress"
}
}
}