T3Activity.java
package t3.com; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.graphics.drawable.BitmapDrawable; import android.os.Bundle; import android.widget.ImageView; public class T3Activity extends Activity { /** Called when the activity is first created. */ private ImageView iv; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); iv = (ImageView)findViewById(R.id.iv); Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(), R.drawable.t); int width = bitmapOrg.getWidth(); int height = bitmapOrg.getHeight(); // 创建操作图片用的matrix对象 Matrix matrix = new Matrix(); matrix.postRotate(270); //旋转度数 Bitmap resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0, width, height, matrix, true); BitmapDrawable bmd = new BitmapDrawable(resizedBitmap); iv.setImageDrawable(bmd); } //\\ }
main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ImageView android:id="@+id/iv" android:layout_width="wrap_content" android:layout_centerInParent="true" android:layout_height="wrap_content" android:background="@android:color/transparent" /> </RelativeLayout> </LinearLayout>