ANDROID API 版本判断

例如判断API版本大于19（即android4.4）

if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.KITAT){}

Build.VERSION_CODES类下面的版本信息（这是android.jar4.4.2版本中的源码）

public static class VERSION_CODES {
        /**
         * Magic version number for a current development build, which has
         * not yet turned into an official release.
         */
        public static final int CUR_DEVELOPMENT = 10000;
        
        /**
         * October 2008: The original, first, version of Android.  Yay!
         */
        public static final int BASE = 1;
        
        /**
         * February 2009: First Android update, officially called 1.1.
         */
        public static final int BASE_1_1 = 2;
        
        /**
         * May 2009: Android 1.5.
         */
        public static final int CUPCAKE = 3;
        
        /**
         * September 2009: Android 1.6.
         */
        public static final int DONUT = 4;
        
        /**
         * November 2009: Android 2.0
         */
        public static final int ECLAIR = 5;
        
        /**
         * December 2009: Android 2.0.1
         */
        public static final int ECLAIR_0_1 = 6;
        
        /**
         * January 2010: Android 2.1
         */
        public static final int ECLAIR_MR1 = 7;
        
        /**
         * June 2010: Android 2.2
         */
        public static final int FROYO = 8;
        
        /**
         * November 2010: Android 2.3
         */
        public static final int GINGERBREAD = 9;
        
        /**
         * February 2011: Android 2.3.3.
         */
        public static final int GINGERBREAD_MR1 = 10;


        /**
         * February 2011: Android 3.0.
         */
        public static final int HONEYCOMB = 11;
        
        /**
         * May 2011: Android 3.1.
         */
        public static final int HONEYCOMB_MR1 = 12;
        
        /**
         * June 2011: Android 3.2.
         */
        public static final int HONEYCOMB_MR2 = 13;


        /**
         * October 2011: Android 4.0.
         */
        public static final int ICE_CREAM_SANDWICH = 14;


        /**
         * December 2011: Android 4.0.3.
         */
        public static final int ICE_CREAM_SANDWICH_MR1 = 15;


        /**
         * June 2012: Android 4.1.
         */
        public static final int JELLY_BEAN = 16;


        /**
         * Android 4.2: Moar jelly beans!
         */
        public static final int JELLY_BEAN_MR1 = 17;


        /**
         * Android 4.3: Jelly Bean MR2, the revenge of the beans.
         */
        public static final int JELLY_BEAN_MR2 = 18;


        /**
         * Android 4.4: KitKat, another tasty treat.
         */
        public static final int KITKAT = 19;
    }

public static class VERSION_CODES {
        /**
         * Magic version number for a current development build, which has
         * not yet turned into an official release.
         */
        public static final int CUR_DEVELOPMENT = 10000;
        
        /**
         * October 2008: The original, first, version of Android.  Yay!
         */
        public static final int BASE = 1;
        
        /**
         * February 2009: First Android update, officially called 1.1.
         */
        public static final int BASE_1_1 = 2;
        
        /**
         * May 2009: Android 1.5.
         */
        public static final int CUPCAKE = 3;
        
        /**
         * September 2009: Android 1.6.
         */
        public static final int DONUT = 4;
        
        /**
         * November 2009: Android 2.0
         */
        public static final int ECLAIR = 5;
        
        /**
         * December 2009: Android 2.0.1
         */
        public static final int ECLAIR_0_1 = 6;
        
        /**
         * January 2010: Android 2.1
         */
        public static final int ECLAIR_MR1 = 7;
        
        /**
         * June 2010: Android 2.2
         */
        public static final int FROYO = 8;
        
        /**
         * November 2010: Android 2.3
         */
        public static final int GINGERBREAD = 9;
        
        /**
         * February 2011: Android 2.3.3.
         */
        public static final int GINGERBREAD_MR1 = 10;

        /**
         * February 2011: Android 3.0.
         */
        public static final int HONEYCOMB = 11;
        
        /**
         * May 2011: Android 3.1.
         */
        public static final int HONEYCOMB_MR1 = 12;
        
        /**
         * June 2011: Android 3.2.
         */
        public static final int HONEYCOMB_MR2 = 13;

        /**
         * October 2011: Android 4.0.
         */
        public static final int ICE_CREAM_SANDWICH = 14;

        /**
         * December 2011: Android 4.0.3.
         */
        public static final int ICE_CREAM_SANDWICH_MR1 = 15;

        /**
         * June 2012: Android 4.1.
         */
        public static final int JELLY_BEAN = 16;

        /**
         * Android 4.2: Moar jelly beans!
         */
        public static final int JELLY_BEAN_MR1 = 17;

        /**
         * Android 4.3: Jelly Bean MR2, the revenge of the beans.
         */
        public static final int JELLY_BEAN_MR2 = 18;

        /**
         * Android 4.4: KitKat, another tasty treat.
         */
        public static final int KITKAT = 19;
    }

ANDROID API 版本判断

原文：http://blog.csdn.net/wwzqj/article/details/43305165