WebView does not support file upload <input type= "files"/>

The project encountered the need for file uploads, iOS is directly supported, Android but did not respond, some models even flash back.

Find a lot of reasons, in the online search method, measured feasible, do a record, knowledge sharing.

HTML File Upload

<input type= "File" class= "uploadbtn" multiple= "multiple" accept= "Image/jpeg" >

Mobile End WebView Rewrite method

    //1. Set webchromeclient, rewrite file upload callbackMwebview.setwebchromeclient (Newwebchromeclient () {//For Android < 3.0             Public voidOpenfilechooser (valuecallback<uri>valuecallback) {Muploadmessage=Valuecallback;            Openimagechooseractivity (); }            //For Android >= 3.0             Public voidOpenfilechooser (Valuecallback valuecallback, String accepttype) {muploadmessage=Valuecallback;            Openimagechooseractivity (); }            //For Android >= 4.1             Public voidOpenfilechooser (valuecallback<uri>Valuecallback, String accepttype, string capture) {Muploadmessage=Valuecallback;            Openimagechooseractivity (); }            //For Android >= 5.0@Override Public BooleanOnshowfilechooser (WebView WebView, valuecallback<uri[]>Filepathcallback, Webchromeclient.filechooserparams filechooserparams) {Muploadcallbackabovel=Filepathcallback;                Openimagechooseractivity (); return true;        }        }); //2. Callback method triggers local selection file        Private voidopenimagechooseractivity () {Intent I=NewIntent (intent.action_get_content);            I.addcategory (intent.category_openable); I.settype ("Image/*"); Startactivityforresult (Intent.createchooser (i,"Image Chooser"), Filechooser_resultcode); }        //3. Select Picture Post-processing@Overrideprotected voidOnactivityresult (intRequestcode,intResultCode, Intent data) {            Super. Onactivityresult (Requestcode, ResultCode, data); if(Requestcode = =File_chooser_result_code) {                if(NULL= = Uploadmessage &&NULL= = Uploadmessageabovel)return; Uri result= Data = =NULL|| ResultCode! = RESULT_OK?NULL: Data.getdata (); if(Uploadmessageabovel! =NULL) {onactivityresultabovel (Requestcode, ResultCode, data); } Else if(Uploadmessage! =NULL) {uploadmessage.onreceivevalue (result); Uploadmessage=NULL; }            }        }            //4. Select content callback to HTML page@TargetApi (build.version_codes. LOLLIPOP)Private voidOnactivityresultabovel (intRequestcode,intResultCode, Intent Intent) {            if(Requestcode! = File_chooser_result_code | | uploadmessageabovel = =NULL)                return; Uri[] Results=NULL; if(ResultCode = =ACTIVITY.RESULT_OK) {                if(Intent! =NULL) {String datastring=intent.getdatastring (); Clipdata Clipdata=Intent.getclipdata (); if(Clipdata! =NULL) {Results=NewUri[clipdata.getitemcount ()];  for(inti = 0; I < Clipdata.getitemcount (); i++) {Clipdata.item Item=Clipdata.getitemat (i); Results[i]=Item.geturi (); }                    }                    if(Datastring! =NULL) Results=Newuri[]{uri.parse (datastring)};            }} uploadmessageabovel.onreceivevalue (results); Uploadmessageabovel=NULL; }    }

WebView does not support file upload <input type= "files"/>