Issue
I am selecting a image from gallery and trying to covert it into pdf using itext , but when i selecting the image its app crashes with null pointer excetion alt="enter image description here" /> when i logged the picture path getting null( String picturePath = cursor.getString(columnIndex);)
code for the same
final private int SELECT_PICTURE = 201;
select_img.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);
}
});
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
switch(requestCode){
case SELECT_PICTURE:
Uri selectedImageUri = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImageUri,filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Bitmap bmp = BitmapFactory.decodeFile(picturePath);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
error
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=201, result=-1, data=Intent { dat=content://com.android.providers.media.documents/document/image:87703 flg=0x1 }} to activity {com.example.pdfcreator/com.example.pdfcreator.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
at android.app.ActivityThread.deliverResults(ActivityThread.java:4423)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4465)
at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:49)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1831)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:201)
at android.app.ActivityThread.main(ActivityThread.java:6810)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
at com.example.pdfcreator.MainActivity.onActivityResult(MainActivity.java:159)
at android.app.Activity.dispatchActivityResult(Activity.java:7590)
at android.app.ActivityThread.deliverResults(ActivityThread.java:441
Solution
solved Intent.ACTION_PICK solved my issue.
i was using this answer How to convert images to pdf using iText , as he used action ACTION_GET_CONTENT
can any one tell me why ACTION_GET_CONTENT not working here?
Answered By - vikram Choudhary
Answer Checked By - Senaida (JavaFixing Volunteer)