Question

I have this code where I want to set an image from a string:

String imagename = "mypicture";
ImageView lblPic = new ImageView(this);
int resID = getResources().getIdentifier(imagename, "drawable", getPackageName());
lblPic.setImageResource(resID);

This is my xml file.

<ImageView  android:layout_width="wrap_content"
 android:layout_height="wrap_content" 
 android:id="@+id/image1" android:src="@drawable/no_image" /> 

Where could there be a problem? I think I’ve setup xml file wrong…? I’ve tried many codes but every time Java code doesn’t change the picture, it stays as it was in xml file.

Answer 1

Correct :

  <ImageView  
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" 
          android:id="@+id/image1" 
          android:src="@drawable/no_image" />

Place this line in onCreate Method of your Activity :

ImageView lblPic = (ImageView) findViewById(R.id.image1);
int resID = getResources().getIdentifier(imagename, "drawable", getPackageName());
lblPic.setImageResource(resID);