diff --git a/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java b/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java
index 619952c..9f76c4e 100644
--- a/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java
+++ b/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java
@@ -2,6 +2,7 @@ package top.jerryyan.RN.A.VersionUpgrade;
 
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.app.ProgressDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.PackageInfo;
@@ -14,6 +15,8 @@ import android.os.Message;
 import android.provider.Settings;
 import android.util.Log;
 
+import androidx.core.content.FileProvider;
+
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
@@ -57,12 +60,12 @@ public class UpgradeModule extends ReactContextBaseJavaModule {
         return constants;
     }
 
-    private boolean _hasPermissionToInstall() {
+    boolean _hasPermissionToInstall() {
         Activity activity = reactContext.getCurrentActivity();
         return activity != null && (Build.VERSION.SDK_INT < Build.VERSION_CODES.O || activity.getPackageManager().canRequestPackageInstalls());
     }
 
-    private void _requestInstallPermission() {
+    void _requestInstallPermission() {
         Activity activity = reactContext.getCurrentActivity();
         if (activity == null) return;
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
@@ -96,6 +99,21 @@ public class UpgradeModule extends ReactContextBaseJavaModule {
                 .show();
     }
 
+    void installPackage(String fileUri){
+        Intent install = new Intent(Intent.ACTION_VIEW);
+        Uri fileUri1 = Uri.parse(fileUri);
+        File file = new File(fileUri1.getPath());
+        if (Build.VERSION.SDK_INT >= 24) {
+            Uri apkUri = FileProvider.getUriForFile(reactContext, reactContext.getPackageName().concat(".fileprovider"), file);
+            install.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+            install.setDataAndType(apkUri, "application/vnd.android.package-archive");
+        } else {
+            install.setDataAndType(Uri.parse(fileUri), "application/vnd.android.package-archive");
+        }
+        install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        reactContext.startActivity(install);
+    }
+
     private void _startDownload() {
         OkHttpClient okHttpClient = new OkHttpClient();
         final Request request = new Request.Builder()
@@ -104,6 +122,16 @@ public class UpgradeModule extends ReactContextBaseJavaModule {
                 .build();
         Call call = okHttpClient.newCall(request);
         final Handler handler = new DoInstallHandler(this);
+        if(!this._hasPermissionToInstall()) this._requestInstallPermission();
+        final ProgressDialog dialog = new ProgressDialog(reactContext.getCurrentActivity());
+        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
+        dialog.setCanceledOnTouchOutside(false);
+        dialog.setCancelable(true);
+        dialog.setTitle("正在下载中");
+        dialog.setMessage("请稍后...");
+        dialog.setProgress(0);
+        dialog.setMax(100);
+        dialog.show();
         call.enqueue(new Callback() {
             @Override
             public void onFailure(Call call, IOException e) {
@@ -119,13 +147,22 @@ public class UpgradeModule extends ReactContextBaseJavaModule {
                     try {
                         stream = response.body().byteStream();
                         byte[] buffer = new byte[2048];
+                        long total = response.body().contentLength();
                         int len;
-                        File file = new File(Environment.getDataDirectory() ,"update.apk");
-                        fileOutputStream = new FileOutputStream(file);
+                        long current = 0;
+
+                        File file = new File(reactContext.getCacheDir().getAbsolutePath() ,"update.apk");
+                        fileOutputStream = new FileOutputStream(file, false);
                         while ((len = stream.read(buffer)) != -1) {
                             fileOutputStream.write(buffer, 0, len);
+                            current += len;
+                            dialog.setProgress((int)((100.0f*current)/total));
                         }
                         fileOutputStream.flush();
+                        Message message = new Message();
+                        message.what = 0;
+                        message.obj = file.toURI().toString();
+                        handler.sendMessage(message);
                     } catch (IOException e) {
                         Log.e("REQUEST FAILED", "AAA", e);
                     } finally {
@@ -220,6 +257,10 @@ final class DoInstallHandler extends Handler {
 
     @Override
     public void handleMessage(Message message) {
-        module._alertDialog();
+        if(!module._hasPermissionToInstall()) module._requestInstallPermission();
+        if(message.what == 0){
+            String fileUri = (String)message.obj;
+            module.installPackage(fileUri);
+        }
     }
 }
\ No newline at end of file