完善登录回落功能 https://gitlab.ghzs.com/halo/assistant-android/issues/17

app/src/main/java/com/gh/common/avoidcallback/AvoidOnResultFragment.kt

@@ -0,0 +1,48 @@
+package com.gh.common.avoidcallback
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.SparseArray
+import androidx.fragment.app.Fragment
+import io.reactivex.Observable
+import io.reactivex.subjects.PublishSubject
+
+class AvoidOnResultFragment : Fragment() {
+    private val mSubjects = SparseArray<PublishSubject<ActivityResultInfo>>()
+    private val mCallbacks = SparseArray<Callback>()
+
+    private var requestCode = 1000
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        retainInstance = true
+    }
+
+    fun startForResult(intent: Intent): Observable<ActivityResultInfo> {
+        val subject = PublishSubject.create<ActivityResultInfo>()
+        return subject.doOnSubscribe {
+            mSubjects.put(requestCode, subject)
+            startActivityForResult(intent, requestCode)
+            requestCode++
+        }
+    }
+
+    fun startForResult(intent: Intent, callback: Callback) {
+        mCallbacks.put(requestCode, callback)
+        startActivityForResult(intent, requestCode)
+        requestCode++
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        val subject = mSubjects.get(requestCode)
+        if (subject != null) {
+            subject.onNext(ActivityResultInfo(resultCode, data))
+            subject.onComplete()
+        }
+        mSubjects.remove(requestCode)
+        val callback = mCallbacks.get(requestCode)
+        callback?.onActivityResult(resultCode, data)
+        mCallbacks.remove(requestCode)
+    }
+}