Install provider

app/src/play/java/eu/faircode/email/ApplicationSecure.java

@@ -0,0 +1,26 @@
+package eu.faircode.email;
+
+import android.content.Intent;
+
+import com.google.android.gms.security.ProviderInstaller;
+
+public class ApplicationSecure extends ApplicationEx implements ProviderInstaller.ProviderInstallListener {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        Log.i("Security provider check");
+        ProviderInstaller.installIfNeededAsync(this, this);
+    }
+
+    @Override
+    public void onProviderInstalled() {
+        Log.i("Security provider installed");
+    }
+
+    @Override
+    public void onProviderInstallFailed(int errorCode, Intent recoveryIntent) {
+        Log.i("Security provider install failed" +
+                " errorCode=" + errorCode +
+                " recoveryIntent=" + recoveryIntent);
+    }
+}