最近因為趕項目進度，因此將本來要用原生控件實現的界面，自己做了H5并嵌入webview中。發(fā)現點擊H5中 input type="file" 標簽 不能打開android資源管理器。

通過網絡搜索發(fā)現是因為 android webview 由于考慮安全原因屏蔽了 input type="file" 這個功能 。

經過不懈的努力，以及google 翻譯的幫助 在 stackoverflow 中找到了解決的方法。

具體可以理解為 重寫webview 的WebChromeClient ，廢話不多說直接貼代碼:

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();

}

以上所述是小編給大家介紹的Android WebView 不支持 H5 input type="file" 解決方法，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對腳本之家網站的支持！

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