up

app/src/main/java/io/legado/app/ui/config/ConfigFragment.kt

@@ -1,15 +1,59 @@
 package io.legado.app.ui.config
 
+import android.content.SharedPreferences
 import android.os.Bundle
+import androidx.preference.ListPreference
+import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import io.legado.app.R
+import io.legado.app.utils.getPrefString
 
 
-class ConfigFragment : PreferenceFragmentCompat() {
+class ConfigFragment : PreferenceFragmentCompat(), Preference.OnPreferenceChangeListener,
+    SharedPreferences.OnSharedPreferenceChangeListener {
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         addPreferencesFromResource(R.xml.pref_config)
     }
 
+    override fun onResume() {
+        super.onResume()
+        preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
+    }
+
+    override fun onPause() {
+        preferenceManager.sharedPreferences.unregisterOnSharedPreferenceChangeListener(this)
+        super.onPause()
+    }
+
+    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
+
+
+    }
+
+    override fun onPreferenceChange(preference: Preference?, newValue: Any?): Boolean {
+        val stringValue = newValue.toString()
+
+        if (preference is ListPreference) {
+            val index = preference.findIndexOfValue(stringValue)
+            // Set the summary to reflect the new value.
+            preference.setSummary(if (index >= 0) preference.entries[index] else null)
+        } else {
+            // For all other preferences, set the summary to the value's
+            preference?.summary = stringValue
+        }
+        return true
+    }
+
+    private fun bindPreferenceSummaryToValue(preference: Preference?) {
+        preference?.let {
+            preference.onPreferenceChangeListener = this
+            onPreferenceChange(
+                preference,
+                preference.context.getPrefString(preference.key, "")
+            )
+        }
+
+    }
 
 }