[代码] main.xml
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"
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Android:orientation="vertical"
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Android:layout_width="fill_parent"
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Android:layout_height="fill_parent"
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>
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<ListView Android:id="@android:id/list"
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Android:layout_width="fill_parent"
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Android:layout_height="fill_parent"></ListView>
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</LinearLayout>
[代码] simple_list_item_1.xml
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout
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xmlns:Android="http://schemas.android.com/apk/res/android"
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Android:layout_width="wrap_content"
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Android:layout_height="wrap_content"
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Android:orientation="vertical">
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<TextView Android:id="@+id/label"
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Android:layout_width="fill_parent"
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Android:layout_height="wrap_content"
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Android:textSize="30sp"></TextView>
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</LinearLayout>
[代码] MenuDemoActivity.java
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package com.yyl;
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import Android.app.ListActivity;
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import Android.os.Bundle;
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import Android.view.ContextMenu;
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import Android.view.ContextMenu.ContextMenuInfo;
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import Android.view.Menu;
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import Android.view.MenuItem;
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import Android.view.View;
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import Android.widget.ArrayAdapter;
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public class MenuDemoActivity extends ListActivity {
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public static final int EIGHT_ID = Menu.FIRST+1;
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public static final int SIXTEEN_ID = Menu.FIRST+2;
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public static final int TWENTY_FOUR_ID = Menu.FIRST+3;
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public static final int TWO_ID = Menu.FIRST+4;
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public static final int THIRTY_TWO_ID = Menu.FIRST+5;
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public static final int FORTY_ID = Menu.FIRST+6;
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public static final int ONE_ID = Menu.FIRST+7;
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String[] items={"lorem", "ipsum", "dolor", "sit", "amet",
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"consectetuer", "adipiscing", "elit", "morbi", "vel",
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"ligula", "vitae", "arcu", "aliquet", "mollis",
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"etiam", "vel", "erat", "placerat", "ante",
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"porttitor", "sodales", "pellentesque", "augue", "purus"};
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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setListAdapter(newArrayAdapter(this,R.layout.simple_list_item_1,R.id.label,items));
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//注册ContextView到view中
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registerForContextMenu(getListView());
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}
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//重写该方法,生成ContextMenu菜单
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@Override
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public void onCreateContextMenu(ContextMenu menu, View v,
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ContextMenuInfo menuInfo) {
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this.populateMenu(menu);
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super.onCreateContextMenu(menu, v, menuInfo);
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}
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private void populateMenu(Menu menu) {
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menu.add(Menu.NONE, ONE_ID, Menu.NONE, "1 Pixel");
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menu.add(Menu.NONE, TWO_ID, Menu.NONE, "2 Pixels");
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menu.add(Menu.NONE, EIGHT_ID, Menu.NONE, "8 Pixels");
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menu.add(Menu.NONE, SIXTEEN_ID, Menu.NONE, "16 Pixels");
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menu.add(Menu.NONE, TWENTY_FOUR_ID, Menu.NONE, "24 Pixels");
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menu.add(Menu.NONE, THIRTY_TWO_ID, Menu.NONE, "32 Pixels");
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menu.add(Menu.NONE, FORTY_ID, Menu.NONE, "40 Pixels");
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}
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}