add devkit to example app

doric-cli/target/android/app/src/main/AndroidManifest.xml

@@ -8,6 +8,7 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
+        android:networkSecurityConfig="@xml/network_security_config"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
         <activity android:name=".MainActivity">

doric-cli/target/android/app/src/main/java/pub/doric/example/MainActivity.java

@@ -1,8 +1,14 @@
 package pub.doric.example;
 
 import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
 
-import pub.doric.DoricActivity;
+import androidx.appcompat.app.AppCompatActivity;
+import pub.doric.DoricFragment;
+import pub.doric.devkit.DoricDev;
+import pub.doric.navbar.BaseDoricNavBar;
 
 public class MainActivity extends AppCompatActivity {
     private final String BUNDLE_NAME = "__$__";
@@ -13,7 +19,22 @@ public class MainActivity extends AppCompatActivity {
         getIntent().putExtra("source", source);
         getIntent().putExtra("alias", BUNDLE_NAME);
         super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        this.getSupportFragmentManager().beginTransaction().add(R.id.container, new DoricFragment()).commit();
         BaseDoricNavBar doricNavBar = findViewById(R.id.doric_nav_bar);
         doricNavBar.setBackIconVisible(false);
+
+        TextView textView = new TextView(this);
+        textView.setText("Devkit");
+        textView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                DoricDev.getInstance().openDevMode();
+            }
+        });
+        textView.setLayoutParams(new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT,
+                ViewGroup.LayoutParams.WRAP_CONTENT));
+        doricNavBar.setRight(textView);
     }
 }

doric-cli/target/android/app/src/main/res/xml/network_security_config.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <base-config cleartextTrafficPermitted="true" />
+</network-security-config>