diff --git a/app/src/main/java/com/hss01248/dialogutildemo/MainActivity.java b/app/src/main/java/com/hss01248/dialogutildemo/MainActivity.java
index 44a7f39..4dd1fe0 100644
--- a/app/src/main/java/com/hss01248/dialogutildemo/MainActivity.java
+++ b/app/src/main/java/com/hss01248/dialogutildemo/MainActivity.java
@@ -359,6 +359,7 @@ public void onThird() {
                         "\n" +
                         "创建 DevOps 工程 && 创建流水线\n" +
                         "创建 DevOps 工程：企业空间—>DevOps 工程—>创建；填入工程名称，点击确定即可。";
+                String msg3 = "one line test";
                 StyledDialog.buildIosAlert( "titlexxxxxxxxxxxxxxxxxxxxxtitlexxxxxxxxxxxxxxxxxxxxx", msg2,  new MyDialogListener() {
                     @Override
                     public void onFirst() {
@@ -386,6 +387,24 @@ public void onThird() {
                     //.setBgRes(R.drawable.leak_canary_icon)
                     //.setCustomContentHolder(new CustomContentHolder(this))
                     .show();
+                StyledDialog.buildIosAlert( "titlexxxxxxxxxxxxxxxxxxxxxtitlexxxxxxxxxxxxxxxxxxxxx", msg3,  new MyDialogListener() {
+                    @Override
+                    public void onFirst() {
+                        showToast("onFirst");
+                    }
+
+                    @Override
+                    public void onSecond() {
+                        showToast("onSecond");
+                    }
+
+                    @Override
+                    public void onThird() {
+                        showToast("onThird");
+                    }
+
+
+                }).show();
                 break;
             case R.id.btn_ios_alert_vertical:
                 StyledDialog.buildIosAlertVertical( "titlelll", msg,  new MyDialogListener() {
diff --git a/dialog/src/main/java/com/hss01248/dialog/StyledDialog.java b/dialog/src/main/java/com/hss01248/dialog/StyledDialog.java
index 9ddce45..281c53b 100644
--- a/dialog/src/main/java/com/hss01248/dialog/StyledDialog.java
+++ b/dialog/src/main/java/com/hss01248/dialog/StyledDialog.java
@@ -189,7 +189,7 @@ public static ConfigBean buildMdMultiChoose(CharSequence title, CharSequence[] w
 
 
     public static ConfigBean buildIosAlert(CharSequence title, CharSequence msg, MyDialogListener listener) {
-        return DialogAssigner.getInstance().assignIosAlert(null, title, msg, listener);
+        return DialogAssigner.getInstance().assignIosAlert(null, title, msg, listener).setBtnText("ok");
     }
 
 
diff --git a/dialog/src/main/java/com/hss01248/dialog/config/ConfigBean.java b/dialog/src/main/java/com/hss01248/dialog/config/ConfigBean.java
index db0fa5d..5b5a449 100644
--- a/dialog/src/main/java/com/hss01248/dialog/config/ConfigBean.java
+++ b/dialog/src/main/java/com/hss01248/dialog/config/ConfigBean.java
@@ -116,7 +116,7 @@ public ConfigBean setxResId(int xResId) {
     public CharSequence title;
     public CharSequence msg;
     public CharSequence text1 = DefaultConfig.btnTxt1;
-    public CharSequence text2 = DefaultConfig.btnTxt2;
+    public CharSequence text2 ;
     public CharSequence text3;
 
     public CharSequence hint1;
diff --git a/dialog/src/main/java/com/hss01248/dialog/config/DefaultConfig.java b/dialog/src/main/java/com/hss01248/dialog/config/DefaultConfig.java
index e914517..2265a92 100644
--- a/dialog/src/main/java/com/hss01248/dialog/config/DefaultConfig.java
+++ b/dialog/src/main/java/com/hss01248/dialog/config/DefaultConfig.java
@@ -89,7 +89,7 @@ public class DefaultConfig {
 
     public static void initBtnTxt(Context context){
         btnTxt1 = context.getResources().getString(R.string.dialogutil_btn_sure);
-        btnTxt2 = context.getResources().getString(R.string.dialogutil_btn_cancel);
+        //btnTxt2 = context.getResources().getString(R.string.dialogutil_btn_cancel);
         bottomTxt = context.getResources().getString(R.string.dialogutil_btn_cancel);
         loadingTxt = context.getResources().getString(R.string.dialogutil_loading);
         uploadingTxt = context.getResources().getString(R.string.dialogutil_uploading);
diff --git a/dialog/src/main/java/com/hss01248/dialog/ios/IosAlertDialogHolder.java b/dialog/src/main/java/com/hss01248/dialog/ios/IosAlertDialogHolder.java
index d553633..a14a1f0 100644
--- a/dialog/src/main/java/com/hss01248/dialog/ios/IosAlertDialogHolder.java
+++ b/dialog/src/main/java/com/hss01248/dialog/ios/IosAlertDialogHolder.java
@@ -2,11 +2,14 @@
 
 
 import android.content.Context;
+import android.os.Build;
 import android.text.TextUtils;
 import android.text.method.HideReturnsTransformationMethod;
 import android.text.method.PasswordTransformationMethod;
+import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
 import android.widget.TextView;
 import android.widget.EditText;
 import android.widget.LinearLayout;
@@ -215,6 +218,22 @@ private void setMsgStyleAndTxt(ConfigBean bean) {
 
             tvMsg.setTextColor(Tool.getColor(tvMsg.getContext(),bean.msgTxtColor));
             tvMsg.setTextSize(bean.msgTxtSize);
+
+            tvMsg.measure(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);
+            tvMsg.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+                @Override
+                public void onGlobalLayout() {
+                    int lineCount = tvMsg.getLineCount();
+                    if(lineCount>0){
+                        tvMsg.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+                        if (lineCount ==1){
+                            tvMsg.setGravity(Gravity.CENTER);
+                        }else {
+                            tvMsg.setGravity(Gravity.LEFT);
+                        }
+                    }
+                }
+            });
         }
     }