Question

对不起，这可能看起来有些奇怪，或者可能是之前可能会提出的问题。但为了这个缘故，请耐心等待。

我是Android开发新手，我为自己的社交网站创建了一个webview应用程序。

但是当有人试图上传文件时，它什么都不做。
是否可以在webview中使用谷歌浏览器设置打开网页，以便维护我的应用程序的CSS设置？

这是我的代码

main xml

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <TableRow android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tableRow1">

    <TextView android:text="CBE Social Android Beta Version"
    android:id="@+id/textView1"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:textStyle="bold"
    android:textSize="12px"
    android:textColor="#ff1ecfff"
    android:layout_gravity="center_horizontal">
        </TextView>
    </TableRow>
    <WebView
    android:id="@+id/webview"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:focusableInTouchMode="true">
</WebView>
</LinearLayout>

的java

package com.template.WebViewTemplate;

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class WebViewTemplate extends Activity {
private WebView myWebView;
/** Called when the activity is first created. */
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_BACK) && myWebView.canGoBack()) { //         Enables browsing to previous pages with the hardware back button
        myWebView.goBack();
        return true;
    }
    return super.onKeyDown(keyCode, event);
}


public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    myWebView = (WebView) findViewById(R.id.webview); // Create an instance of WebView and set it to the layout component created with id webview in main.xml
    myWebView.getSettings().setJavaScriptEnabled(true);
    myWebView.loadUrl("http://www.cobesodom.ac.tz"); // Specify the URL to load when the application starts
    //myWebView.loadUrl("file://sdcard/"); // Specify a local file to load when the application starts. Will only load file types WebView supports
    myWebView.setWebViewClient(new WebViewKeep());
    myWebView.setInitialScale(1); // Set the initial zoom scale
    myWebView.getSettings().setBuiltInZoomControls(true); // Initialize zoom controls for your WebView component
    myWebView.getSettings().setUseWideViewPort(true); // Initializes double-tap zoom control

}

private class WebViewKeep extends WebViewClient {
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }
}}

Answer 1

您可以在这篇文章中找到答案File Upload in WebView

您只需添加此代码。

myWebView.loadUrl("http://www.script-tutorials.com/demos/199/index.html");
myWebView.setWebViewClient(new myWebClient());
myWebView.setWebChromeClient(new WebChromeClient()  
{  
    //The undocumented magic method override  
    //Eclipse will swear at you if you try to put @Override here  
    // For Android 3.0+
    public void openFileChooser(ValueCallback<Uri> uploadMsg) {  

        mUploadMessage = uploadMsg;  
        Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
        i.addCategory(Intent.CATEGORY_OPENABLE);  
        i.setType("image/*");  
        MyWb.this.startActivityForResult(Intent.createChooser(i,"File Chooser"), FILECHOOSER_RESULTCODE);  

       }

    // For Android 3.0+
       public void openFileChooser( ValueCallback uploadMsg, String acceptType ) {
       mUploadMessage = uploadMsg;
       Intent i = new Intent(Intent.ACTION_GET_CONTENT);
       i.addCategory(Intent.CATEGORY_OPENABLE);
       i.setType("*/*");
       MyWb.this.startActivityForResult(
       Intent.createChooser(i, "File Browser"),
       FILECHOOSER_RESULTCODE);
       }

    //For Android 4.1
       public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture){
           mUploadMessage = uploadMsg;  
           Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
           i.addCategory(Intent.CATEGORY_OPENABLE);  
           i.setType("image/*");  
           MyWb.this.startActivityForResult( Intent.createChooser( i, "File Chooser" ), MyWb.FILECHOOSER_RESULTCODE );

       }

});

如何在Android中使用Webview并上传文件

1 个答案: