Reading Preferences By default, all your app's preferences are saved to a file that's accessible from anywhere within your application by calling the static method PreferenceManager.getDefaultSharedPreferences(). This returns theSharedPreferences obj
简单聊一下Android中Button的五种监听事件: 1.在布局文件中为button添加onClick属性,Activity实现其方法2.匿名内部类作为事件监听器类3.内部类作为监听器4.Activity本身作为事件监听器,实现onClickListener5.外部类作为监听器 ButtonListenerActivity.class public class ButtonListenerActivity extends AppCompatActivity implements View.On