废话不多说了，直接给大家代码。
具体代码如下所示：
package com.droidhen.game.layout; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.PaintFlagsDrawFilter; import android.graphics.Rect; import android.widget.ImageView; public class RotateImageView extends ImageView { /**旋转角度**/ private float _degree; /**旋转中心**/ private float _x; private float _y; /** 背景和前景资源 */ private Bitmap _bgRes, _fgRes; /** 数字图片资源 */ private Bitmap _nums; private Bitmap _buffer; private Canvas _canvas; private int start = ; private int unitx = ; public RotateImageView(Context context) { super(context); _degree = f; _x = ; _y = ; _nums = BitmapFactory.decodeResource(getResources(), R.drawable.level_num); } public void setResIds(int bgResId, int fgResId) { _bgRes = BitmapFactory.decodeResource(getResources(), bgResId); _fgRes = BitmapFactory.decodeResource(getResources(), fgResId); } public void setLevel(int level) { String _level = String.valueOf(level); _buffer = Bitmap.createBitmap( _level.length()*(_nums.getWidth()/), _nums.getHeight(), Config.ARGB_); unitx = _nums.getWidth()/; _canvas = new Canvas(_buffer); for(int i = ; i <= _level.length()-; i++){ Rect src = new Rect((_level.charAt(i) - '')*unitx, , (_level.charAt(i) - '' + )*unitx, _nums.getHeight()); Rect dst = new Rect( i*unitx, , (i + )*unitx, _nums.getHeight()); _canvas.drawBitmap(_nums, src, dst, null); } } public void setLevel(int level, int Resid) { _nums = BitmapFactory.decodeResource(getResources(), Resid); String _level = String.valueOf(level); _buffer = Bitmap.createBitmap( _level.length()*(_nums.getWidth()/), _nums.getHeight(), Config.ARGB_); unitx = _nums.getWidth()/; _canvas = new Canvas(_buffer); for(int i = ; i <= _level.length()-; i++){ Rect src = new Rect((_level.charAt(i) - '')*unitx, , (_level.charAt(i) - '' + )*unitx, _nums.getHeight()); Rect dst = new Rect( i*unitx, , (i + )*unitx, _nums.getHeight()); _canvas.drawBitmap(_nums, src, dst, null); } } public void setDegree(float degree) { _degree = degree; } public void setDegree(float degree, float x, float y) { _degree = degree; _x = x; _y = y; } public float getDegree() { return _degree; } public float getRotateX() { return _x; } public float getRotateY() { return _y; } @Override public void draw(Canvas canvas) { canvas.save(); canvas.setDrawFilter(new PaintFlagsDrawFilter(, Paint.ANTI_ALIAS_FLAG|Paint.FILTER_BITMAP_FLAG)); canvas.rotate(_degree, _x, _y); canvas.drawBitmap(_bgRes, , , null); canvas.drawBitmap(_fgRes, , , null); canvas.drawBitmap(_buffer, (_bgRes.getWidth() - _buffer.getWidth())/f, , null); canvas.restore(); } }
以上代码是关于Android RotateImageView 可旋转ImageView 的全部内容，希望对大家有所帮助。