旋转图像的机器人

问题描述

限时删除！！

我想在这两个方面顺时针和反时针旋转图像。我有尝试，但不能旋转图像两种方式， 所以嘿给我的解决方案我的问题，如果你知道..

I want rotate image in both the ways Clockwise as well as Anti clock wise.I had try but not rotate image both the way, so plz give me solution for my problem if you know..

在此先感谢......... ///

Thanks in Advance.................///

推荐答案

使用以下

public class Rotateimage extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_gallery);
          // or just load a resource from the res/drawable directory:
          Bitmap myBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.flo);

          // find the width and height of the screen:
          Display d = getWindowManager().getDefaultDisplay();
          int x = d.getWidth();
          int y = d.getHeight();

          // get a reference to the ImageView component that will display the image:
          ImageView img1 = (ImageView)findViewById(R.id.imageView1);

          // scale it to fit the screen, x and y swapped because my image is wider than it is tall
          Bitmap scaledBitmap = Bitmap.createScaledBitmap(myBitmap, y, x, true);

          // create a matrix object
          Matrix matrix = new Matrix();

          matrix.postRotate(45, 90, 180);

          // create a new bitmap from the original using the matrix to transform the result
          Bitmap rotatedBitmap = Bitmap.createBitmap(scaledBitmap , 0, 0, scaledBitmap .getWidth(), scaledBitmap .getHeight(), matrix, true);
                // display the rotated bitmap
          img1.setImageBitmap(rotatedBitmap);
}}

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