优化

app/src/main/java/io/legado/app/base/BaseDialogFragment.kt

@@ -3,6 +3,7 @@ package io.legado.app.base
 import android.os.Bundle
 import android.view.View
 import androidx.fragment.app.DialogFragment
+import androidx.fragment.app.FragmentManager
 import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.lib.theme.ThemeStore
 import kotlinx.coroutines.CoroutineScope
@@ -10,6 +11,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlin.coroutines.CoroutineContext
 
+
 abstract class BaseDialogFragment : DialogFragment(), CoroutineScope {
     override val coroutineContext: CoroutineContext
         get() = job + Dispatchers.Main
@@ -29,6 +31,17 @@ abstract class BaseDialogFragment : DialogFragment(), CoroutineScope {
 
     abstract fun onFragmentCreated(view: View, savedInstanceState: Bundle?)
 
+    override fun show(manager: FragmentManager, tag: String?) {
+        try {
+            //在每个add事务前增加一个remove事务，防止连续的add
+            manager.beginTransaction().remove(this).commit()
+            super.show(manager, tag)
+        } catch (e: Exception) {
+            //同一实例使用不同的tag会异常,这里捕获一下
+            e.printStackTrace()
+        }
+    }
+
     override fun onDestroy() {
         super.onDestroy()
         job.cancel()