android多点触控 两指缩放的demo

android多点触控 两指缩放的demo，以缩放TextView的文字缩放为例~

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * aapt tool from the resource data it found.  It
 * should not be modified by hand.
 */

package demo.android.multitouch.ui;

public final class R {
    public static final class attr {
    }
    public static final class drawable {
        public static final int ic_launcher=0x7f020000;
    }
    public static final class id {
        public static final int textView=0x7f050000;
    }
    public static final class layout {
        public static final int main=0x7f030000;
    }
    public static final class string {
        public static final int app_name=0x7f040001;
        public static final int hello=0x7f040000;
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2012-03-25 02:16  _MultiTouchDemo\
     文件         364  2012-03-25 02:16  _MultiTouchDemo\.classpath
     文件         851  2012-03-25 02:16  _MultiTouchDemo\.project
     文件         743  2012-03-25 02:16  _MultiTouchDemo\AndroidManifest.xml
     目录           0  2012-03-25 02:16  _MultiTouchDemo\assets\
     目录           0  2012-03-25 15:31  _MultiTouchDemo\bin\
     目录           0  2012-03-25 02:16  _MultiTouchDemo\bin\classes\
     文件        3892  2012-03-25 15:31  _MultiTouchDemo\bin\classes.dex
     目录           0  2012-03-25 02:16  _MultiTouchDemo\bin\classes\demo\
     目录           0  2012-03-25 02:16  _MultiTouchDemo\bin\classes\demo\android\
     目录           0  2012-03-25 12:28  _MultiTouchDemo\bin\classes\demo\android\multitouch\
     目录           0  2012-03-25 02:21  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\
     文件        1192  2012-03-25 15:46  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\MainActivity.class
     文件         364  2012-03-25 02:17  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\R$attr.class
     文件         431  2012-03-25 02:17  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\R$drawable.class
     文件         410  2012-03-25 02:17  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\R$id.class
     文件         418  2012-03-25 02:17  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\R$layout.class
     文件         451  2012-03-25 02:17  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\R$string.class
     文件         587  2012-03-25 02:17  _MultiTouchDemo\bin\classes\demo\android\multitouch\ui\R.class
     目录           0  2012-03-25 12:28  _MultiTouchDemo\bin\classes\demo\android\multitouch\zoom\
     文件        1693  2012-03-25 15:31  _MultiTouchDemo\bin\classes\demo\android\multitouch\zoom\ZoomListenter.class
     目录           0  2012-03-25 02:20  _MultiTouchDemo\bin\res\
     文件       10878  2012-03-25 12:12  _MultiTouchDemo\bin\resources.ap_
     目录           0  2012-03-25 02:20  _MultiTouchDemo\bin\res\drawable-hdpi\
     文件        3966  2012-03-25 02:20  _MultiTouchDemo\bin\res\drawable-hdpi\ic_launcher.png
     目录           0  2012-03-25 02:20  _MultiTouchDemo\bin\res\drawable-ldpi\
     文件        1537  2012-03-25 02:20  _MultiTouchDemo\bin\res\drawable-ldpi\ic_launcher.png
     目录           0  2012-03-25 02:20  _MultiTouchDemo\bin\res\drawable-mdpi\
     文件        2200  2012-03-25 02:20  _MultiTouchDemo\bin\res\drawable-mdpi\ic_launcher.png
     文件       14777  2012-03-25 15:31  _MultiTouchDemo\bin\_MultiTouchDemo.apk
     目录           0  2012-03-25 02:16  _MultiTouchDemo\gen\
............此处省略26个文件信息