在Android Java中,可以通过WebView上传文件而不使用FileChooser。以下是一个示例解决方法:
WebView webView = (WebView) findViewById(R.id.webview);
webView.setWebViewClient(new CustomWebViewClient());
private class CustomWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
boolean isExternalRequest = request.getUrl().toString().startsWith("http://") || request.getUrl().toString().startsWith("https://");
if (isExternalRequest) {
Intent intent = new Intent(Intent.ACTION_VIEW, request.getUrl());
startActivity(intent);
return true;
}
}
return false;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == FILE_UPLOAD_REQUEST_CODE && resultCode == RESULT_OK) {
Uri fileUri = data.getData();
// 处理文件上传逻辑
}
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.setHeaderTitle("选择文件");
menu.add(0, FILE_UPLOAD_REQUEST_CODE, 0, "文件管理器");
}
registerForContextMenu(webView);
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
WebView.HitTestResult result = webView.getHitTestResult();
if (result.getType() == WebView.HitTestResult.UNKNOWN_TYPE) {
return;
}
if (result.getType() == WebView.HitTestResult.EDIT_TEXT_TYPE) {
return;
}
menu.add(0, FILE_UPLOAD_REQUEST_CODE, 0, "上传文件");
}
通过以上步骤,可以实现在Android Java中,通过WebView上传文件而不使用FileChooser。注意,该解决方法适用于Android版本5.0及以上。