uniapp webview h5 输入框被挡

我在使用unapp的web-view组建加载h5的时候（android平台），遇到输入框被虚拟键盘挡住的情况。一番百度后没有找到解决方法，于是我写了一个android原生应用，用android自带的webview加载我的h5，发现一切正常，输入框没被挡住。于是我写了一个uniapp原生插件，专门用来加载我的h5。当一切准备就绪之后，问题解决了。本以为可以交付给客户了，后来又出现了一个令我不解的问题。这个问题是这样的，当h5里面操作完了以后需要通知uniapp做其他操作，于是我就使用android提供的addJavascriptInterface方法，给h5提供一个接口。奇怪的问题就要出现了，我在开放这个插件的时候，我使用的是androidstudio工具，在测试这个h5的时候，一切正常，h5能调用我提供的接口，uniapp内部也收到了通知。但是当我发布插件集成到uniapp里面之后，这个方法就失效了，这让我百思不得其解。我只能怀疑是uniapp的bug了。请问谁遇到过这个问题吗？下面我把我的代码贴出来

package top.swkjvr.simplebrowser;  

import android.annotation.SuppressLint;  
import android.annotation.TargetApi;  
import android.content.Context;  
import android.content.Intent;  
import android.os.Build;  
import android.os.Handler;  
import android.support.v7.app.AppCompatActivity;  
import android.os.Bundle;  
import android.util.Log;  
import android.view.View;  
import android.webkit.JavascriptInterface;  
import android.webkit.WebChromeClient;  
import android.webkit.WebResourceRequest;  
import android.webkit.WebSettings;  
import android.webkit.WebView;  
import android.webkit.WebViewClient;  
import android.widget.ProgressBar;  
import android.widget.Toast;  

public class SimpleBrowserActivity extends AppCompatActivity {  
    private static final String TAG = SimpleBrowserActivity.class.getName();  

    private WebView webView;  
    private ProgressBar progressBar;  
    private Handler handler = new Handler();  

    @SuppressLint("JavascriptInterface")  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_simple_browser);  

        progressBar = findViewById(R.id.progressBar);  
        progressBar.setVisibility(View.GONE);  

        webView = findViewById(R.id.webview);  
        webView.setWebViewClient(new WebViewClient(){  
            @Override  
            public boolean shouldOverrideUrlLoading(WebView view, String url) {  
                view.loadUrl(url);  
                return super.shouldOverrideUrlLoading(view, url);  
            }  

            @TargetApi(Build.VERSION_CODES.LOLLIPOP)  
            @Override  
            public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {  
                view.loadUrl(String.valueOf(request.getUrl()));  
                return super.shouldOverrideUrlLoading(view, request);  
            }  

        });  
        webView.setWebChromeClient(new WebChromeClient(){  
            @Override  
            public void onProgressChanged(WebView view, int newProgress) {  
                progressBar.setProgress(newProgress);  

                if (newProgress == 100) {  
                    handler.postDelayed(new Runnable() {  
                        @Override  
                        public void run() {  
                            progressBar.setVisibility(View.GONE);  
                        }  
                    }, 800);  
                } else {  
                    if (progressBar.getVisibility() == View.GONE) {  
                        progressBar.setVisibility(View.VISIBLE);  
                    }  
                }  
//                Log.d(TAG, "progress: " + newProgress);  
                super.onProgressChanged(view, newProgress);  
            }  
        });  
        WebSettings settings = webView.getSettings();  
        settings.setJavaScriptEnabled(true);  

        Intent intent = getIntent();  
        String url = intent.getStringExtra("url");  
        if (url == null) {  
            Toast.makeText(this, "url不能为空", Toast.LENGTH_LONG).show();  
            new Handler().postDelayed(new Runnable() {  
                @Override  
                public void run() {  
                    finish();  
                }  
            }, 1000);  
            return;  
        }  
        webView.loadUrl(url);  
        webView.addJavascriptInterface(new SimpleJavaScriptInterface(this), "AndroidInterface");  
    }  

    public static void loadUrl(String url, Context context) {  
        Intent intent = new Intent(context, SimpleBrowserActivity.class);  
        intent.putExtra("url", url);  
        context.startActivity(intent);  
    }  

    @Override  
    public void onBackPressed() {  
        if (webView.canGoBack()) {  
            webView.goBack();  
            return;  
        }  
        sendExit();  
        super.onBackPressed();  
    }  

    protected void onResume() {  
        super.onResume();  
        SimpleBrowserModule.registerRec(this);  
    }  

    protected void onPause() {  
        super.onPause();  
        SimpleBrowserModule.unregisterRec(this);  
    }  

    class SimpleJavaScriptInterface {  
        SimpleBrowserActivity activity;  

        public SimpleJavaScriptInterface(SimpleBrowserActivity activity) {  
            this.activity = activity;  
        }  

        @SuppressLint("JavascriptInterface")  
        @JavascriptInterface  
        void exit() {  
            Log.d(TAG, "js call exit");  
            activity.sendExit();  
            activity.finish();  
        }  
    }  

    private void sendExit() {  
        Intent intent = new Intent();  
        intent.setAction(CustomActionReceiver.ACTION_RECEIVER);  
        intent.putExtra(CustomActionReceiver.KEY_EXTRA_ACT, "exit");  
        sendBroadcast(intent);  
    }  
}  
//uniapp  
//#ifdef APP-PLUS  
    const simpleBrowserPlugin = uni.requireNativePlugin('SimpleBrowser');  
    //#endif  
if (uni.getSystemInfoSync().platform == "android") {  
                        console.log('call simpleBrowserPlugin')  
                        simpleBrowserPlugin.loadUrl({url: url}, ()=>{  
                            console.log('simpleBrowser exit')  
                            uni.switchTab({  
                                url:'../main/main'  
                            })  
                        })  
                    } else {  
                        uni.navigateTo({  
                            url: `../common/browser?url=${url}?UserID=${this.userInfo.account}`  
                        })  
                    }