menu xml들을 이용해서 contextMenu를 만들어보자
- res 밑에 menu 폴더(directory)를 만들고, menu1.xml, menu2.xml을 만들어준다
menu1.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/itemRed"
android:title="배경색(빨강)"/>
<item android:id="@+id/itemGreen"
android:title="배경색(초록)"/>
<item android:id="@+id/itemBlue"
android:title="배경색(파랑)"/>
</menu>
menu2.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/subRotate"
android:title="버튼 45도 회전"/>
<item android:id="@+id/subSize"
android:title="버튼 2개 확대"/>
</menu>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout android:id="@+id/baseLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center_horizontal">
<Button android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="배경색 변경"/>
<Button android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="버튼 변경"/>
</LinearLayout>
</LinearLayout>
MainActivity.java
package com.example.boki.contextmenuusingxml;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity {
LinearLayout baseLayout;
Button button1, button2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setTitle("배경색 바꾸기(컨텍스트 메뉴)");
baseLayout = (LinearLayout)findViewById(R.id.baseLayout);
button1 = (Button)findViewById(R.id.button1);
button2 = (Button)findViewById(R.id.button2);
registerForContextMenu(button1);
registerForContextMenu(button2);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater mInflater = getMenuInflater();
if (v == button1) {
menu.setHeaderTitle("배경색 변경");
mInflater.inflate(R.menu.menu1, menu);
}
if (v == button2) {
menu.setHeaderTitle("버튼 변경");
mInflater.inflate(R.menu.menu2, menu);
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
// return super.onContextItemSelected(item);
switch (item.getItemId()) {
case R.id.itemRed:
baseLayout.setBackgroundColor(Color.RED);
return true;
case R.id.itemGreen:
baseLayout.setBackgroundColor(Color.GREEN);
return true;
case R.id.itemBlue:
baseLayout.setBackgroundColor(Color.BLUE);
return true;
case R.id.subRotate:
button1.setRotation(45);
button2.setRotation(45);
return true;
case R.id.subSize:
button1.setScaleX(2);
button2.setScaleY(2);
return true;
} return false;
}
}
결과 화면
