先创建一个内部类继承自ContentObserver
class SettingsContentObserver extends ContentObserver { public SettingsContentObserver() { super(new Handler()); } @Override public void onChange(boolean selfChange) { //do something } } class SettingsContentOb先创建一个内部类继承自ContentObserver
class SettingsContentObserver extends ContentObserver { public SettingsContentObserver() { super(new Handler()); } @Override public void onChange(boolean selfChange) { //do something } } class SettingsContentOb