File	Doc	Category	Size	Date	Package
SystemProperties.java	API Doc	Android 5.1 API	5742	Thu Mar 12 22:22:10 GMT 2015	android.os

SystemProperties

• java.lang.Object

Fields Summary
public static final int	PROP_NAME_MAX
public static final int	PROP_VALUE_MAX
private static final ArrayList	sChangeCallbacks

Constructors Summary

Methods Summary
public static void	addChangeCallback(java.lang.Runnable callback) synchronized (sChangeCallbacks) { if (sChangeCallbacks.size() == 0) { native_add_change_callback(); } sChangeCallbacks.add(callback); }
static void	callChangeCallbacks() synchronized (sChangeCallbacks) { //Log.i("foo", "Calling " + sChangeCallbacks.size() + " change callbacks!"); if (sChangeCallbacks.size() == 0) { return; } ArrayList<Runnable> callbacks = new ArrayList<Runnable>(sChangeCallbacks); for (int i=0; i<callbacks.size(); i++) { callbacks.get(i).run(); } }
public static java.lang.String	get(java.lang.String key) Get the value for the given key. return an empty string if the key isn't found throws IllegalArgumentException if the key exceeds 32 characters if (key.length() > PROP_NAME_MAX) { throw new IllegalArgumentException("key.length > " + PROP_NAME_MAX); } return native_get(key);
public static java.lang.String	get(java.lang.String key, java.lang.String def) Get the value for the given key. return if the key isn't found, return def if it isn't null, or an empty string otherwise throws IllegalArgumentException if the key exceeds 32 characters if (key.length() > PROP_NAME_MAX) { throw new IllegalArgumentException("key.length > " + PROP_NAME_MAX); } return native_get(key, def);
public static boolean	getBoolean(java.lang.String key, boolean def) Get the value for the given key, returned as a boolean. Values 'n', 'no', '0', 'false' or 'off' are considered false. Values 'y', 'yes', '1', 'true' or 'on' are considered true. (case sensitive). If the key does not exist, or has any other value, then the default result is returned. param key the key to lookup param def a default value to return return the key parsed as a boolean, or def if the key isn't found or is not able to be parsed as a boolean. throws IllegalArgumentException if the key exceeds 32 characters if (key.length() > PROP_NAME_MAX) { throw new IllegalArgumentException("key.length > " + PROP_NAME_MAX); } return native_get_boolean(key, def);
public static int	getInt(java.lang.String key, int def) Get the value for the given key, and return as an integer. param key the key to lookup param def a default value to return return the key parsed as an integer, or def if the key isn't found or cannot be parsed throws IllegalArgumentException if the key exceeds 32 characters if (key.length() > PROP_NAME_MAX) { throw new IllegalArgumentException("key.length > " + PROP_NAME_MAX); } return native_get_int(key, def);
public static long	getLong(java.lang.String key, long def) Get the value for the given key, and return as a long. param key the key to lookup param def a default value to return return the key parsed as a long, or def if the key isn't found or cannot be parsed throws IllegalArgumentException if the key exceeds 32 characters if (key.length() > PROP_NAME_MAX) { throw new IllegalArgumentException("key.length > " + PROP_NAME_MAX); } return native_get_long(key, def);
private static native void	native_add_change_callback()
private static native java.lang.String	native_get(java.lang.String key)
private static native java.lang.String	native_get(java.lang.String key, java.lang.String def)
private static native boolean	native_get_boolean(java.lang.String key, boolean def)
private static native int	native_get_int(java.lang.String key, int def)
private static native long	native_get_long(java.lang.String key, long def)
private static native void	native_set(java.lang.String key, java.lang.String def)
public static void	set(java.lang.String key, java.lang.String val) Set the value for the given key. throws IllegalArgumentException if the key exceeds 32 characters throws IllegalArgumentException if the value exceeds 92 characters if (key.length() > PROP_NAME_MAX) { throw new IllegalArgumentException("key.length > " + PROP_NAME_MAX); } if (val != null && val.length() > PROP_VALUE_MAX) { throw new IllegalArgumentException("val.length > " + PROP_VALUE_MAX); } native_set(key, val);