Update Install Fragment UI

app/src/main/java/com/topjohnwu/magisk/utils/Async.java

@@ -12,6 +12,7 @@ import android.support.v7.app.AlertDialog;
 import android.util.Log;
 import android.widget.Toast;
 
+import com.topjohnwu.magisk.InstallFragment;
 import com.topjohnwu.magisk.ModulesFragment;
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.ReposFragment;
@@ -293,4 +294,20 @@ public class Async {
         }
 
     }
+
+    public static class GetBootBlocks extends RootTask<Void, Void, Void> {
+        @Override
+        protected Void doInBackground(Void... params) {
+            InstallFragment.blockList = Shell.su("ls /dev/block | grep mmc");
+            if (InstallFragment.bootBlock == null) {
+                InstallFragment.bootBlock = Utils.detectBootImage();
+            }
+            return null;
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            InstallFragment.blockDetectionDone.trigger();
+        }
+    }
 }

app/src/main/java/com/topjohnwu/magisk/utils/Utils.java

@@ -138,10 +138,6 @@ public class Utils {
                 .replace("#", "").replace("@", "").replace("*", "");
     }
 
-    public static List<String> getBlockList() {
-        return Shell.su("ls /dev/block | grep mmc");
-    }
-
     public static String detectBootImage() {
         String[] commands = {
                 "for PARTITION in kern-a KERN-A android_boot ANDROID_BOOT kernel KERNEL boot BOOT lnx LNX; do",