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Android WebView 不支持 H5 input type="file" 解决方法

2024-02-20 19:07:05 159

最近因为赶项目进度，因此将本来要用原生控件实现的界面，自己做了H5并嵌入webview中。发现点击H5中inputtype="file"标签不能打开android资源管理器。

通过网络搜索发现是因为androidwebview由于考虑安全原因屏蔽了inputtype="file"这个功能。

经过不懈的努力，以及google翻译的帮助在stackoverflow中找到了解决的方法。

具体可以理解为重写webview的WebChromeClient，废话不多说直接贴代码:

privateValueCallbackmUploadMessage;
publicValueCallbackuploadMessage;
publicstaticfinalintREQUEST_SELECT_FILE=100;
privatefinalstaticintFILECHOOSER_RESULTCODE=2;
webview.setWebChromeClient(newWebChromeClient(){
//For3.0+Devices(Start)
//onActivityResultattachedbeforeconstructor
protectedvoidopenFileChooser(ValueCallbackuploadMsg,StringacceptType)
{
mUploadMessage=uploadMsg;
Intenti=newIntent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i,"FileBrowser"),FILECHOOSER_RESULTCODE);
}
//ForLollipop5.0+Devices
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
publicbooleanonShowFileChooser(WebViewmWebView,ValueCallbackfilePathCallback,WebChromeClient.FileChooserParamsfileChooserParams)
{
if(uploadMessage!=null){
uploadMessage.onReceiveValue(null);
uploadMessage=null;
}
uploadMessage=filePathCallback;
Intentintent=fileChooserParams.createIntent();
try
{
startActivityForResult(intent,REQUEST_SELECT_FILE);
}catch(ActivityNotFoundExceptione)
{
uploadMessage=null;
Toast.makeText(getBaseContext(),"CannotOpenFileChooser",Toast.LENGTH_LONG).show();
returnfalse;
}
returntrue;
}
//ForAndroid4.1only
protectedvoidopenFileChooser(ValueCallbackuploadMsg,StringacceptType,Stringcapture)
{
mUploadMessage=uploadMsg;
Intentintent=newIntent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent,"FileBrowser"),FILECHOOSER_RESULTCODE);
}
protectedvoidopenFileChooser(ValueCallbackuploadMsg)
{
mUploadMessage=uploadMsg;
Intenti=newIntent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i,"FileChooser"),FILECHOOSER_RESULTCODE);
}
});
}
@Override
publicvoidonActivityResult(intrequestCode,intresultCode,Intentintent)
{
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.LOLLIPOP)
{
if(requestCode==REQUEST_SELECT_FILE)
{
if(uploadMessage==null)
return;
uploadMessage.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode,intent));
uploadMessage=null;
}
}
elseif(requestCode==FILECHOOSER_RESULTCODE)
{
if(null==mUploadMessage)
return;
//UseMainActivity.RESULT_OKifyou'reimplementingWebViewinsideFragment
//UseRESULT_OKonlyifyou'reimplementingWebViewinsideanActivity
Uriresult=intent==null||resultCode!=MainActivity.RESULT_OK?null:intent.getData();
mUploadMessage.onReceiveValue(result);
mUploadMessage=null;
}
else
Toast.makeText(getBaseContext(),"FailedtoUploadImage",Toast.LENGTH_LONG).show();
}

以上所述是小编给大家介绍的AndroidWebView不支持H5inputtype="file"解决方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持！

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Android WebView 不支持 H5 input type="file" 解决方法

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