WebView Android 4.0 文件上传 [英] WebView Android 4.0 file upload

问题描述

它只是不工作.

我正在这样做

webView.setWebChromeClient(new WebChromeClient() {

        public void openFileChooser(ValueCallback<Uri> uploadFile) {
            System.out.println("openFileChooser");
            mUploadMessage = uploadFile;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.setType("file/*");
            PresentationActivity.this.startActivityForResult(
                    Intent.createChooser(i, "Image Browser"),
                    FILECHOOSER_RESULTCODE);
        }
    });

但是 openFileChooser 永远不会被调用.有任何想法吗?openFileChooser 在 Android 源代码中被标记为 @hide.我认为这是因为你不应该使用这种方法.还有另一种可能打开文件选择器吗??

but openFileChooser is never called. Any ideas? openFileChooser is marked @hide in Android source code. I think its because you should NOT use this method. Is there another possibility to open a fileChooser??

推荐答案

openFileChooser 的参数已经更新了一些时间.

Parameters for openFileChooser have been updated some times.

对于 Android 3.0 - 4.0，它是

For Android 3.0 - 4.0, it is

public void openFileChooser( ValueCallback<Uri> uploadMsg, String acceptType )

对于 4.1，

public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture)

对于 2.x

public void openFileChooser( ValueCallback<Uri> uploadMsg )

您必须添加所有这些以支持 Android 2.0 和 4.1 之间的任何设备.

You'll have to add all of them to support any devices between Android 2.0 and 4.1.

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