001.package com.myapp;
002.
003.import android.os.Bundle;
004.import android.view.ContextMenu;
005.import android.view.ContextMenu.ContextMenuInfo;
006.import android.view.Menu;
007.import android.view.MenuItem;
008.import android.view.View;
009.import android.widget.Button;
010.import android.widget.Toast;
011.import android.app.Activity;
012.
013.
014.public class MainActivity extends Activity {
015.
016. String[] Cmd1 = {"Command1","Command2","Command3","Command4"};
017. String[] Cmd2 = {"Command5","Command6","Command7","Command8"};
018.
019. Button btn1;
020. Button btn2;
021.
022. String btnClick;
023.
024. @Override
025. public void onCreate(Bundle savedInstanceState) {
026. super.onCreate(savedInstanceState);
027. setContentView(R.layout.activity_main);
028.
029.
030. btn1 = (Button)findViewById(R.id.button1);
031.
032.
033. btn2 = (Button)findViewById(R.id.button2);
034.
035. registerForContextMenu(btn1);
036. registerForContextMenu(btn2);
037. }
038.
039. @Override
040. public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
041.
042. menu.setHeaderIcon(android.R.drawable.btn_star_big_on);
043.
044. if (v == btn1) {
045. btnClick = "Cmd1";
046. String[] menuItems = Cmd1;
047. menu.setHeaderTitle("Menu 1");
048. for (int i = 0; i<menuItems.length; i++) {
049. menu.add(Menu.NONE, i, i, menuItems[i]);
050. }
051. } else if (v == btn2) {
052. btnClick = "Cmd2";
053. String[] menuItems = Cmd2;
054. menu.setHeaderTitle("Menu 2");
055. for (int i = 0; i<menuItems.length; i++) {
056. menu.add(Menu.NONE, i, i, menuItems[i]);
057. }
058. }
059.
060.
061. }
062.
063. @Override
064. public boolean onContextItemSelected(MenuItem item) {
065. int menuItemIndex = item.getItemId();
066.
067.
068. if(btnClick == "Cmd1")
069. {
070.
071. String[] menuItems = Cmd1;
072. String CmdName = menuItems[menuItemIndex];
073.
074.
075. if ("Command1".equals(CmdName)) {
076. Toast.makeText(MainActivity.this,"Your Selected Command1",Toast.LENGTH_LONG).show();
077.
078.
079.
080.
081. } else if ("Command2".equals(CmdName)) {
082. Toast.makeText(MainActivity.this,"Your Selected Command2",Toast.LENGTH_LONG).show();
083.
084.
085.
086.
087. } else if ("Command3".equals(CmdName)) {
088. Toast.makeText(MainActivity.this,"Your Selected Command3",Toast.LENGTH_LONG).show();
089.
090.
091.
092.
093. } else if ("Command4".equals(CmdName)) {
094. Toast.makeText(MainActivity.this,"Your Selected Command4",Toast.LENGTH_LONG).show();
095.
096.
097.
098.
099. }
100.
101. }
102.
103.
104. if(btnClick == "Cmd2")
105. {
106.
107. String[] menuItems = Cmd2;
108. String CmdName = menuItems[menuItemIndex];
109.
110.
111. if ("Command5".equals(CmdName)) {
112. Toast.makeText(MainActivity.this,"Your Selected Command5",Toast.LENGTH_LONG).show();
113.
114.
115.
116.
117. } else if ("Command6".equals(CmdName)) {
118. Toast.makeText(MainActivity.this,"Your Selected Command6",Toast.LENGTH_LONG).show();
119.
120.
121.
122.
123. } else if ("Command7".equals(CmdName)) {
124. Toast.makeText(MainActivity.this,"Your Selected Command7",Toast.LENGTH_LONG).show();
125.
126.
127.
128.
129. } else if ("Command8".equals(CmdName)) {
130. Toast.makeText(MainActivity.this,"Your Selected Command8",Toast.LENGTH_LONG).show();
131.
132.
133.
134.
135. }
136.
137. }
138.
139. return true;
140. }
141.
142.
143. @Override
144. public boolean onCreateOptionsMenu(Menu menu) {
145. getMenuInflater().inflate(R.menu.activity_main, menu);
146. return true;
147. }
148.
149.}
ช่วยกันสนับสนุนรักษาเว็บไซต์ความรู้แห่งนี้ไว้ด้วยการสนับสนุน 
