fix provider init error

Author: john990

example/build.gradle

@@ -32,7 +32,7 @@ android {
 }
 
 dependencies {
-    implementation project(path: ':fcl-android')
+//    implementation project(path: ':fcl-android')
 
     implementation 'androidx.core:core-ktx:1.7.0'
     implementation 'androidx.appcompat:appcompat:1.4.1'
@@ -42,6 +42,8 @@ dependencies {
 
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2'
 
+    implementation 'com.github.Outblock:fcl-android:0.02'
+
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

example/src/main/AndroidManifest.xml

@@ -19,11 +19,6 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
-
-        <provider
-            android:authorities="io.outblock.fcl.context"
-            android:name="io.outblock.fcl.lifecycle.FCLContentProvider"
-            android:exported="false"/>
     </application>
 
 </manifest>

fcl-android/src/main/AndroidManifest.xml

@@ -8,5 +8,10 @@
         <activity
             android:name=".webview.WebViewActivity"
             android:launchMode="singleTop"/>
+
+        <provider
+            android:authorities="io.outblock.fcl.context"
+            android:name="io.outblock.fcl.lifecycle.FCLContentProvider"
+            android:exported="false"/>
     </application>
 </manifest>

fcl-android/src/main/java/io/outblock/fcl/Fcl.kt

@@ -1,5 +1,6 @@
 package io.outblock.fcl
 
+import android.os.Looper
 import androidx.annotation.WorkerThread
 import com.nftco.flow.sdk.FlowAddress
 import com.nftco.flow.sdk.simpleFlowScript
@@ -14,6 +15,7 @@ import io.outblock.fcl.request.AuthnRequest
 import io.outblock.fcl.request.AuthzSend
 import io.outblock.fcl.request.SignMessageSend
 import io.outblock.fcl.request.builder.FclBuilder
+import io.outblock.fcl.utils.ioScope
 import kotlinx.coroutines.runBlocking
 
 object Fcl {
@@ -67,11 +69,17 @@ object Fcl {
      */
     @WorkerThread
     fun authenticate(provider: Provider): AuthnResponse {
+        assert(Thread.currentThread() != Looper.getMainLooper().thread) { "can't call this method in main thread." }
+
         val resp = AuthnRequest().authenticate(provider)
         currentUser = User.fromAuthn(resp)
         return AuthnResponse(resp.data?.addr, resp.status, resp.reason)
     }
 
+    fun authenticateAsync(provider: Provider, callback: (response: AuthnResponse) -> Unit) {
+        ioScope { callback(authenticate(provider)) }
+    }
+
     /**
      * Mutate the chain: Send arbitrary transactions with your own signatures or via a user's wallet to perform state changes on chain.
      *
@@ -99,6 +107,7 @@ object Fcl {
      */
     @WorkerThread
     fun mutate(builder: FclBuilder.() -> Unit): String {
+        assert(Thread.currentThread() != Looper.getMainLooper().thread) { "can't call this method in main thread." }
         return runBlocking { AuthzSend().send(builder) }
     }
 
@@ -125,6 +134,8 @@ object Fcl {
      */
     @WorkerThread
     fun query(builder: FclBuilder.() -> Unit): String {
+        assert(Thread.currentThread() != Looper.getMainLooper().thread) { "can't call this method in main thread." }
+
         val outBuilder = FclBuilder().apply { builder(this) }
 
         assert(!outBuilder.cadence.isNullOrBlank()) { "Script is empty" }
@@ -141,6 +152,8 @@ object Fcl {
      */
     @WorkerThread
     fun signMessage(message: String): String {
+        assert(Thread.currentThread() != Looper.getMainLooper().thread) { "can't call this method in main thread." }
+
         return runBlocking { SignMessageSend().sign(message) }
     }
 

fcl-android/src/main/java/io/outblock/fcl/utils/FclError.kt

@@ -1,18 +1,13 @@
 package io.outblock.fcl.utils
 
-import io.outblock.fcl.BuildConfig
-
 class FclException(
     private val error: FclError,
     private val exception: Exception? = null,
 ) : Exception(error.value) {
 
     init {
-        if (BuildConfig.DEBUG) {
-            printStackTrace()
-        }
+        exception?.printStackTrace()
     }
-
 }
 
 enum class FclError(val value: String) {