Getting Started with Android. Image View ImageView

Image View ImageView

1. Using <ImageView/> in XML

<ImageView
   	    android:id="@+id/imageView"
   	    android:layout_width="wrap_content"
   	    android:layout_height="wrap_content"
   	    android:src="@drawable/inter" //The picture is stored in res/drawable-hdpi
   	    />
It can also be set in code like this:
imageView.setImageResource(R.id.imageView);//同android:src="@drawable/inter"


2. Use the ImageView object to represent it in the code
imageView = (ImageView)findViewById(R.id.imageView);



3. The magic ScaleType (stretched type) property
Role: how the picture adapts to the size of the ImageView

android:scaleType="fitCenter"//Equal scaling