diff --git a/app/src/main/java/cc/niushuai/dididone/MainActivity.java b/app/src/main/java/cc/niushuai/dididone/MainActivity.java
index aae9772..29a07a1 100644
--- a/app/src/main/java/cc/niushuai/dididone/MainActivity.java
+++ b/app/src/main/java/cc/niushuai/dididone/MainActivity.java
@@ -50,13 +50,13 @@ public class MainActivity extends AppCompatActivity {
         setContentView(binding.getRoot());
 
         setSupportActionBar(binding.appBarMain.toolbar);
-        binding.appBarMain.fab.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View view) {
-                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
-                        .setAction("Action", null).show();
-            }
-        });
+//        binding.appBarMain.didiDing.setOnClickListener(new View.OnClickListener() {
+//            @Override
+//            public void onClick(View view) {
+//                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+//                        .setAction("Action", null).show();
+//            }
+//        });
         DrawerLayout drawer = binding.drawerLayout;
         NavigationView navigationView = binding.navView;
         // Passing each menu ID as a set of Ids because each
diff --git a/app/src/main/java/cc/niushuai/dididone/util/Toasts.java b/app/src/main/java/cc/niushuai/dididone/util/Toasts.java
new file mode 100644
index 0000000..1db873d
--- /dev/null
+++ b/app/src/main/java/cc/niushuai/dididone/util/Toasts.java
@@ -0,0 +1,29 @@
+package cc.niushuai.dididone.util;
+
+import android.content.Context;
+import android.widget.Toast;
+
+import cn.hutool.core.util.StrUtil;
+
+public class Toasts {
+
+    public static void shortShow(Context context, String msg) {
+        shortShow(context, msg, null);
+    }
+
+    public static void shortShow(Context context, String msg, String... params) {
+        show(context, Toast.LENGTH_SHORT, msg, params);
+    }
+
+    public static void longShow(Context context, String msg) {
+        longShow(context, msg, null);
+    }
+
+    public static void longShow(Context context, String msg, String... params) {
+        show(context, Toast.LENGTH_SHORT, msg, params);
+    }
+
+    public static void show(Context context, int duration, String msg, String... params) {
+        Toast.makeText(context, StrUtil.format(msg, params), duration).show();
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/app_bar_main.xml b/app/src/main/res/layout/app_bar_main.xml
index 71559db..e83f9eb 100644
--- a/app/src/main/res/layout/app_bar_main.xml
+++ b/app/src/main/res/layout/app_bar_main.xml
@@ -22,13 +22,4 @@
 
     <include layout="@layout/content_main" />
 
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_marginEnd="@dimen/fab_margin"
-        android:layout_marginBottom="16dp"
-        app:srcCompat="@android:drawable/ic_dialog_email" />
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file