suspend activityForResult

activity.kt

/**
 * Wraps the parameters of onActivityResult
 *
 * @property resultCode the result code returned from the activity.
 * @property data the optional intent returned from the activity.
 * @since 0.0.3
 */
data class ActivityResult(
    val requestCode: Int,
    val resultCode: Int,
    val data: Intent?) {

    /**
     *
     */
    val isOk: Boolean = (resultCode == Activity.RESULT_OK)
}


abstract class CYCompatActivity : AppCompatActivity(), CoroutineScope by MainScope()  {

    private val resultByCode = mutableMapOf<Int, CompletableDeferred<ActivityResult?>>()

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        resultByCode[requestCode]?.let {
            it.complete(
                ActivityResult(
                    requestCode = requestCode,
                    resultCode = resultCode,
                    data = data
                )
            )
            resultByCode.remove(requestCode)
        } ?: run {
            super.onActivityResult(requestCode, resultCode, data)
        }
    }

    override fun onDestroy() {
        super.onDestroy()
        cancel()
    }

    /**
     * 
     */
    suspend fun awaitActivityForResult(requestCode: Int, intent: Intent): ActivityResult? {
        val activityResult = CompletableDeferred<ActivityResult?>()
        if (intent.resolveActivity(packageManager) != null) {
            resultByCode[requestCode] = activityResult
            startActivityForResult(intent, requestCode)
        } else {
            activityResult.complete(null)
        }
        return activityResult.await()
    }
}