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 input type="file" 标签 不能打开android资源管理器。

通过网络搜索发现是因为 android webview 由于考虑安全原因屏蔽了 input type="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:

private ValueCallback mUploadMessage;

public ValueCallback uploadMessage;

public static final int REQUEST_SELECT_FILE = 100;

private final static int FILECHOOSER_RESULTCODE = 2;

webview.setWebChromeClient(new WebChromeClient(){

// For 3.0+ Devices (Start)

// onActivityResult attached before constructor

protected void openFileChooser(ValueCallback uploadMsg, String acceptType)

{

mUploadMessage = uploadMsg;

Intent i = new Intent(Intent.ACTION_GET_CONTENT);

i.addCategory(Intent.CATEGORY_OPENABLE);

i.setType("image/*");

startActivityForResult(Intent.createChooser(i, "File Browser"), FILECHOOSER_RESULTCODE);

}

// For Lollipop 5.0+ Devices

@TargetApi(Build.VERSION_CODES.LOLLIPOP)

public boolean onShowFileChooser(WebView mWebView, ValueCallback filePathCallback, WebChromeClient.FileChooserParams fileChooserParams)

{

if (uploadMessage != null) {

uploadMessage.onReceiveValue(null);

uploadMessage = null;

}

uploadMessage = filePathCallback;

Intent intent = fileChooserParams.createIntent();

try

{

startActivityForResult(intent, REQUEST_SELECT_FILE);

} catch (ActivityNotFoundException e)

{

uploadMessage = null;

Toast.makeText(getBaseContext(), "Cannot Open File Chooser", Toast.LENGTH_LONG).show();

return false;

}

return true;

}

//For Android 4.1 only

protected void openFileChooser(ValueCallback uploadMsg, String acceptType, String capture)

{

mUploadMessage = uploadMsg;

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

intent.addCategory(Intent.CATEGORY_OPENABLE);

intent.setType("image/*");

startActivityForResult(Intent.createChooser(intent, "File Browser"), FILECHOOSER_RESULTCODE);

}

protected void openFileChooser(ValueCallback uploadMsg)

{

mUploadMessage = uploadMsg;

Intent i = new Intent(Intent.ACTION_GET_CONTENT);

i.addCategory(Intent.CATEGORY_OPENABLE);

i.setType("image/*");

startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);

}

});

}

@Override

public void onActivityResult(int requestCode, int resultCode, Intent intent)

{

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;

}

}

else if (requestCode == FILECHOOSER_RESULTCODE)

{

if (null == mUploadMessage)

return;

// Use MainActivity.RESULT_OK if you're implementing WebView inside Fragment

// Use RESULT_OK only if you're implementing WebView inside an Activity

Uri result = intent == null || resultCode != MainActivity.RESULT_OK ? null : intent.getData();

mUploadMessage.onReceiveValue(result);

mUploadMessage = null;

}

else

Toast.makeText(getBaseContext(), "Failed to Upload Image", Toast.LENGTH_LONG).show();

}

以上所述是小编给大家介绍的Android WebView 不支持 H5 input type="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脚本之家网站的支持！