I can't figure out what could be the reason. The photo is attached only 1 time, that is, I press the attach button, the photo is attached, I press it again - the application crashes ... Maybe someone can also tell me what code will help attach several images at once, now this is a maximum of one.
There is also an option to upload an image from the camera (should be). The camera opens, takes a photo and seems to attach, but nothing actually happens. And after pressing the button to attach a photo again, the application crashes, but this is more likely to the first part of the question.
public class MainActivity extends AppCompatActivity {
private MainActivity activity;
private WebView webView;
private UploadSupport uploadSupport;
private ValueCallback<Uri[]> mUMA;
private Uri uri;
private String mainPage = "*";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
uploadSupport = new UploadSupport(MainActivity.this);
webView = findViewById(R.id.webview);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setAllowContentAccess(true);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().getLoadWithOverviewMode();
webView.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(
WebView view,
WebResourceRequest request
){
return super.shouldOverrideUrlLoading(view, request);
}
@Override
public void onPageFinished(WebView view, String url) {
}
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
super.onReceivedError(view, request, error);
}
});
webView.setWebChromeClient(new WebChromeClient(){
@Override
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {
uploadSupport.showFileChooser(filePathCallback);
if (mUMA != null){
mUMA.onReceiveValue(null);
}
mUMA = filePathCallback;
return true;
}
@Override
public void onPermissionRequest(final PermissionRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
request.grant(request.getResources());
}
}
});
webView.loadUrl(mainPage);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode==UploadSupport.uploadCode){
if (grantResults.length>0&&grantResults[0]== PackageManager.PERMISSION_GRANTED){
uploadSupport.showFileChooser(mUMA);
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode==UploadSupport.FCR){
if (uploadSupport.mUMA!=null){
uploadSupport.mUMA.onReceiveValue(parseResult(resultCode, data));
}
}
}
}
I use an additional class UploadSupport for file upload.
public class UploadSupport {
public ValueCallback<Uri> mUM;
public ValueCallback<Uri[]> mUMA;
public String mCM;
public static int FCR = 863;
public static int uploadCode = 9438162;
private Activity activity;
public UploadSupport(Activity activity){
this.activity = activity;
}
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUM = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
activity.startActivityForResult(Intent.createChooser(i, "File Chooser"), FCR);
}
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
mUM = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
activity.startActivityForResult(
Intent.createChooser(i, "File Browser"),
FCR);
}
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
mUM = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
activity.startActivityForResult(Intent.createChooser(i, "File Chooser"), FCR);
}
private File createImageFile() throws IOException {
@SuppressLint("SimpleDateFormat") String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "img_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
return File.createTempFile(imageFileName, ".jpg", storageDir);
}
public void showFileChooser(ValueCallback<Uri[]> filePathCallback){
if (Build.VERSION.SDK_INT>=23){
if (ContextCompat.checkSelfPermission(activity,Manifest.permission.WRITE_EXTERNAL_STORAGE)
==PackageManager.PERMISSION_GRANTED){
manageFileChooser(filePathCallback);
}else {
activity.requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},uploadCode);
}
}else {
manageFileChooser(filePathCallback);
}
}
private void manageFileChooser(ValueCallback<Uri[]> filePathCallback){
if (mUMA != null) {
mUMA.onReceiveValue(null);
}
mUMA = filePathCallback;
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(activity.getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
takePictureIntent.putExtra("PhotoPath", mCM);
} catch (IOException exc) {
Log.e("TAG", "Image file creation failed", exc);
}
if (photoFile != null) {
mCM = "file:" + photoFile.getAbsolutePath();
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
} else {
takePictureIntent = null;
}
}
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.setType("*/*");
Intent[] intentArray;
if (takePictureIntent != null) {
intentArray = new Intent[]{takePictureIntent};
} else {
intentArray = new Intent[0];
}
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, "Choose an Action");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
activity.startActivityForResult(chooserIntent,FCR);
}
}
There is 2 errors in Logcat, after crash
A/chromium: [FATAL:jni_android.cc(306)] Please include Java exception stack in crash report
A/libc: Fatal signal 5 (SIGTRAP), code -6 (SI_TKILL) in tid 19063 (iesel.ru.java12), pid 19063
I would be very grateful if you tell me what is wrong or at least point me in the right direction.
