1.support arm64-v8a

2.change default pool

Author: devanfs

app/build.gradle

@@ -19,7 +19,7 @@ android {
             }
         }
         ndk {
-            abiFilters "armeabi-v7a"
+            abiFilters "armeabi-v7a","arm64-v8a"
         }
     }
     signingConfigs {

app/src/main/AndroidManifest.xml

@@ -36,6 +36,7 @@
         </activity>
         <activity
                 android:name=".MainActivity"
+                android:exported="false"
                 android:launchMode="singleTask"
                 android:windowSoftInputMode="adjustPan"/>
         <activity android:name=".activity.WalletActivity"/>

app/src/main/java/io/xdag/xdagwallet/model/PoolListModel.java

@@ -41,7 +41,7 @@ private PoolListModel() {
     public void init() {
         poolList.clear();
         // xdagmine.com:13654
-        poolList.add(new PoolModel("xdagmine.com:13654"));
+        poolList.add(new PoolModel("116.202.3.220:13655"));
     }