android各版本号的定义和比较方法

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这是sdk版本判断的代码:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">) </span>

<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">{</span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"> </span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">ActionBar ab = getActivity().getActionBar();</span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"></span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">ab.setTitle("请选择");</span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"> </span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">} else {</span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"> </span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">getActivity().setTitle("请选择");</span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"></span><span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">}</span>

下面是各版本号的定义:

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;/** * November 2012: Android 4.2, Moar jelly beans! */public static final int JELLY_BEAN_MR1 = 17;/** * July 2013: Android 4.3, the revenge of the beans. */public static final int JELLY_BEAN_MR2 = 18;/** * October 2013: Android 4.4, KitKat, another tasty treat. */public static final int KITKAT = 19;/** * Android 4.4W: KitKat for watches, snacks on the run. * */public static final int KITKAT_WATCH = 20;/** * Temporary until we completely switch to {@link #LOLLIPOP}. */public static final int L = 21;/** * Lollipop. A flat one with beautiful shadows. But still tasty. */public static final int LOLLIPOP = 21;}