BitmapFactory.decodeStream (fileInputStream) returns null - Android

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BitmapFactory.decodeStream (fileInputStream) returns null - Android

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#1 by (1 votes)
#2 by (0 votes)

5

Good!

I have a problem with the following code in Android Studio:

try {
 FileInputStream fileInputStream = new FileInputStream(dirPhoto);
 bitmap = BitmapFactory.decodeStream(fileInputStream);
 vwImagen.setImageBitmap(bitmap);
  } 
catch (SecurityException io){
} 
 catch (FileNotFoundException io) {
 }

The fileInputStream file seems to be created correctly, but when wanting to convert it to Bitmap, the function BitmapFactory.decodeStream(fileInputStream) returns a null value.

It is worth clarifying that it is an image in jpg. The value of dirPhoto is:

/data/data/com.example.leandro.application/files/pic_20170316104409.jpg

Thank you!

java android bitmap

asked by ZottoSL 17.03.2017 в 19:37

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2 answers

0

I recommend declaring it this way:

bitmap = BitmapFactory.decodeFile (PhotoDir);

vwImagen.setImageBitmap (bitmap);

answered by 18.03.2017 в 00:50

Detect changes made in WindowsForms controls, C # 0 ^ 0 = 1 in Oracle?

score 1 · Accepted Answer

If you have the file path, you can use decodeFile ()

try {
 //FileInputStream fileInputStream = new FileInputStream(dirPhoto);
 //bitmap = BitmapFactory.decodeStream(fileInputStream);
  bitmap = BitmapFactory.decodeFile(dirPhoto);
 vwImagen.setImageBitmap(bitmap);
  }catch (SecurityException io){
  }catch (FileNotFoundException io) {
 }

decodeFile () Decode a file path in a bitmap. If he The specified file name is null or can not be decoded in a bitmap, the function returns null.