菜单实现对话框

@Override

public void onClick(View v) {

v.showContextMenu();//单击直接显示Context菜单

}

<----

也可以通过为某一个按键注册上下文菜单，

例如Button button

为button注册上下文菜单

registerForContextMenu(button);需要常按才能跳出上下文菜单

---->

@Override

public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {

super.onCreateContextMenu(menu, v, menuInfo);

getMenuInflater().inflate(R.menu.em_remove_from_blacklist, menu);

//MenuInflater menuInflater=new MenuInflater(this);

//menuInflater.inflate(R.menu.em_remove_from_blacklist, menu);

}

@Override

public boolean onContextItemSelected(MenuItem item) {

if (item.getItemId() == R.id.remove) {

final String tobeRemoveUser = adapter.getItem(((AdapterContextMenuInfo) item.getMenuInfo()).position);

// remove user out from blacklist

removeOutBlacklist(tobeRemoveUser);

return true;

}

return super.onContextItemSelected(item);

}

em_remove_from_blacklist文件位置：res-->menu--->em_remove_from_blacklist

<?xml version="1.0" encoding="utf-8"?>

<!----

单一菜单

--->

<item

android:id="@+id/remove"

android:title="@string/move_out_backlist"/>

</menu>

<!----

群组菜单

可以有single、none、all(多选)

--->

<group android:checkableBehavior="single"

<item

android:id="@+id/font_10"

android:title="@string/font_10"/>

<item

android:id="@+id/font_12"

android:title="@string/font_12"/>

使用系统的菜单，不需要写XML文件

为某个按键注册上下文菜单 registerForContextMenu(button); button是你定义的一个Button

重写函数

@Override

public void onCreateContextMenu(ContextMenu menu, View source, ContextMenu.ContextMenuInfo menuInfo)

{

menu.add(0,MENU1,0,"红色");//MENU1为宏定义

menu.add(0,MENU2,0,"绿色");

menu.add(0,MENU3,0,"蓝色");

menu.setGoupCheckable(0,true,true); //将三个菜单设置为单选菜单，其中0为群组号

//设置上下文菜单的标题，图标

menu.setHeaderIcon(R.drawable.tools);

menu.setHeaderTitle("选择背景色");

<!--

可以设置多个

-->

}

//上下文菜单的菜单项被单击时触发该方法

@Overide

public boolean onContextIntemSelected(MenuItem mi)

{

switch(mi.getItemId())

{

case MENU1:

m1.setChecked(true);//设置该菜单可选

}

选项菜单

重写

@Override

public boolean onCreateOptionsMenu(Menu menu)

{

<!---

可以设置多个subMenu

SubMenu subMenuOne= menu.addSubMenu("字体大小");

subMenuOne.add(0,FONT_10,0,"10号字体");

subMenuOne.add(0,FONT_11,0,"11号字体");

SubMenu subMenuTwo= menu.addSubMenu("字体颜色");

subMenuOne.add(0,RED,0,"红色");

subMenuOne.add(0,BULE,0,"绿色");

绑定Activity

subMenuOne.setIntent(new Intent(this,OntherActivity.class));

--->

}

@public boolean onOptionsItemSelected(MenuItem mi)

使用PopupMenu

PopupMenu pupup=new PopupMenu(this,button);

getMenuInflater().inflate(R.menu.popup_menu,pupup.getMenu());

popup.setOnMenuItemClickLister( new PopupMenu.OnMenuItemClickListener（MenuItem item）

{

});

popup.show();

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