我正在开发一个应用程序,使用
我使用的示例代码在此 链接 中。
正如您所看到的,从
WebView
访问一些逻辑。这个逻辑有一个部分是用户可以上传图片,但我似乎找不到让应用程序这样做的方法。我使用的示例代码在此 链接 中。
正如您所看到的,从
WebChromeClient
设置了自定义的 Intent
,但是文件选择器根本没有打开。 代码如下:public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType){
// Update message
mUploadMessage = uploadMsg;
try{
// Create AndroidExampleFolder at sdcard
File imageStorageDir = new File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES)
, "AndroidExampleFolder");
if (!imageStorageDir.exists()) {
// Create AndroidExampleFolder at sdcard
imageStorageDir.mkdirs();
}
// Create camera captured image file path and name
File file = new File(
imageStorageDir + File.separator + "IMG_"
+ String.valueOf(System.currentTimeMillis())
+ ".jpg");
mCapturedImageURI = Uri.fromFile(file);
// Camera capture image intent
final Intent captureIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
// Create file chooser intent
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
// Set camera intent to file chooser
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS
, new Parcelable[] { captureIntent });
// On select image call onActivityResult method of activity
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
catch(Exception e){
Toast.makeText(getBaseContext(), "Exception:"+e,
Toast.LENGTH_LONG).show();
}
}
提前感谢!
编辑
所以,经过@JoxTraex的启示,我意识到文件选择器没有触发,因为我没有覆盖WebChromeClient
的任何方法。现在,文件选择器正在提示,但是,如果我选择一个图像,则该图像不会被上传。
我用于文件选择器的代码:
@Override
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {
openFileChooser(filePathCallback, "");
return super.onShowFileChooser(webView, filePathCallback, fileChooserParams);
}
public void openFileChooser(ValueCallback<Uri[]> uploadMsg, String acceptType){
// Update message
//mUploadMessage = uploadMsg.this;
try{
// Create AndroidExampleFolder at sdcard
File imageStorageDir = new File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES)
, "AndroidExampleFolder");
if (!imageStorageDir.exists()) {
// Create AndroidExampleFolder at sdcard
imageStorageDir.mkdirs();
}
// Create camera captured image file path and name
File file = new File(
imageStorageDir + File.separator + "IMG_"
+ String.valueOf(System.currentTimeMillis())
+ ".jpg");
mCapturedImageURI = Uri.fromFile(file);
// Camera capture image intent
final Intent captureIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
// Create file chooser intent
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
// Set camera intent to file chooser
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS
, new Parcelable[] { captureIntent });
// On select image call onActivityResult method of activity
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
catch(Exception e){
Toast.makeText(getBaseContext(), "Exception:"+e,
Toast.LENGTH_LONG).show();
}
}
提前致谢!