android使用Webview上传图片

package com.example.webview;

import java.io.File;

import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class MainActivity extends Activity {
ValueCallback<Uri> callback;
private WebView wv;

@SuppressLint("SetJavaScriptEnabled")
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       wv = (WebView) findViewById(R.id.wv);
       wv.loadUrl("http://101.200.142.201/Login/index?redirect_uri=http%3A%2F%2F101.200.142.201%2F");
       wv.getSettings().setJavaScriptEnabled(true);
       wv.setWebChromeClient(new WebChromeClient() {
           @SuppressWarnings("unused")
           public void openFileChooser(ValueCallback<Uri> uploadMsg,
                   String acceptType, String capture) {

callback = uploadMsg;

Intent picture = new Intent(
                       Intent.ACTION_PICK,
                       android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
               startActivityForResult(picture, 1);

}
});
wv.setWebViewClient(new WebViewClient() {

public boolean shouldOverrideUrlLoading(WebView view, String url) {
               wv.loadUrl(url);
               return true;
           }

});
}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
       // TODO Auto-generated method stub
       Uri uri = data.getData();
       if (uri != null && callback != null) {

callback.onReceiveValue(uri);
       }
       super.onActivityResult(requestCode, resultCode, data);
   }

}

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android使用Webview上传图片

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