android 自定义悬浮菜单

android中的自定义的悬浮菜单，其实就是一个dialog。类似于下图。

代码如下：

/** * 此类为自定义菜单Dialog * */public class MenuDialog extends Dialog {private static final int H_NO_LOGIN = 0;private static final int H_REFRESH_VIEW = 1;private Context context;private boolean isLogin;private MenuRefreshView menuRefresh;private MyProgressDialog myProgressDialog;public MenuDialog(Context context, int theme,MenuRefreshView menuRefresh) {super(context, theme);this.context = context;Window win = this.getWindow();LayoutParams params = new LayoutParams();params.x = 590;// 设置x坐标params.y = -278;// 设置y坐标win.setAttributes(params);setContentView(R.layout.menu_dialog_layout);this.setCanceledOnTouchOutside(true);// 设置点击Dialog外部任意区域关闭Dialog initView();}/** * 外部调用构造函数 * */public MenuDialog(Context context,MenuRefreshView menuRefresh) {this(context, R.style.dialog,menuRefresh);}/** * 初始化组件 * */private void initView() {TextView loginItem = (TextView) findViewById(R.id.menu_login_item);TextView setItem = (TextView) findViewById(R.id.menu_set_item);TextView feedBackItem = (TextView) findViewById(R.id.menu_feedback_item);if (isLogin) {loginItem.setText(context.getText(R.string.user_cancle));}loginItem.setOnClickListener(onClickListener);setItem.setOnClickListener(onClickListener);feedBackItem.setOnClickListener(onClickListener);}

其中“R.layout.menu_dialog_layout”布局文件代码如下：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"     android:background="@color/black">    <TextView        android:id="@+id/menu_login_item"        android:layout_width="100dp"        android:layout_height="40dp"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true"        android:layout_marginTop="2dp"        android:text="@string/menu_login"         android:textSize="20sp"        android:gravity="center"        android:background="@drawable/menu_item_bg"/>    <TextView        android:id="@+id/menu_set_item"        android:layout_width="100dp"        android:layout_height="40dp"        android:textSize="20sp"        android:layout_alignLeft="@+id/menu_login_item"        android:layout_below="@+id/menu_login_item"        android:background="@drawable/menu_item_bg"        android:gravity="center"        android:text="@string/menu_set" /><!--     <TextView        android:id="@+id/menu_about_item"        android:layout_width="100dp"        android:layout_height="40dp"        android:textSize="20sp"        android:layout_alignLeft="@+id/menu_set_item"        android:layout_below="@+id/menu_set_item"        android:background="@drawable/menu_item_bg"        android:gravity="center"        android:text="关  于" /> -->    <TextView        android:id="@+id/menu_feedback_item"        android:layout_width="100dp"        android:layout_height="40dp"        android:textSize="20sp"        android:layout_alignLeft="@+id/menu_set_item"        android:layout_below="@+id/menu_set_item"        android:background="@drawable/menu_item_bg"        android:gravity="center"        android:text="@string/menu_feedback" /></RelativeLayout>

外部调用该菜单的方法如下：

new MenuDialog(this, new MenuRefreshView() {public void refreshView() {canaleUser(tabIndex);}}).show();

MenuRefreshView() 是外部接口，用于执行回调操作。