使用LauncherActivity开发启动的列表
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Android开发学习之LauncherActivity开发启动的列表创建项目:OtherActivity项目运行结果:\ \\ 建立主Activity:OtherActivity.java[java] package wwj.otherActivity; import android.os.Bundle; import android.app.Activity; import android.app.LauncherActivity; import android.content.Intent; import android.view.Menu; import android.view.MenuItem; import android.widget.ArrayAdapter; import android.support.v4.app.NavUtils; public class OtherActivity extends LauncherActivity { //定义两个Activity的名称 String[] names = {"设置程序参数", "查看星际兵种"}; //定义两个Activity对应的实现类 Class<?>[] clazzs = {PreferenceActivityTest.class, ExpandableListActivityTest.class}; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1 , names); // 设置该窗口显示的列表所需的Adapter setListAdapter(adapter); } //根据列表项返回指定Activity对应的Intent @Override protected Intent intentForPosition(int position) { // TODO Auto-generated method stub return new Intent(OtherActivity.this, clazzs[position]); } }
建立第一个列表项的Activity:PreferenceActivityTest.java[java]package wwj.otherActivity; import android.os.Bundle; public class PreferenceActivityTest extends android.preference.PreferenceActivity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); //设置显示参数设置布局 addPreferencesFromResource(R.xml.preferences); } } PreferenceActivity使用的界面布局文件[html] <?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" > <!-- 设置系统铃声 --> <RingtonePreference android:ringtoneType="all" android:title="设置铃声" android:summary="选择铃声" android:showDefault="true" android:key="ring_key" android:showSilent="true"> </RingtonePreference> <PreferenceCategory android:title="个人信息设置组"> <!-- 通过输入框填写用户名 --> <EditTextPreference android:key="name" android:title="用户名" android:summary="填写你的用户名" android:dialogTitle="您所使用的用户名为: " /> <!-- 通过列表框选择性别 --> <ListPreference android:key="gender" android:title="性别" android:summary="选择您的性别" android:dialogTitle="ListPreference" android:entries="@array/gender_name_list" android:entryValues="@array/gender_value_list" /> </PreferenceCategory> <PreferenceCategory android:title="系统功能设置组"> <CheckBoxPreference android:key="autoSave" android:title="自动保存进度" android:summaryOn="自动保存 :开启" android:summaryOff="自动保存:关闭" android:defaultValue="true"/> </PreferenceCategory> </PreferenceScreen> <?xml version="1.0" encoding="utf-8"?><PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" > <!-- 设置系统铃声 --> <RingtonePreference android:ringtoneType="all" android:title="设置铃声" android:summary="选择铃声" android:showDefault="true" android:key="ring_key" android:showSilent="true"> </RingtonePreference> <PreferenceCategory android:title="个人信息设置组"> <!-- 通过输入框填写用户名 --> <EditTextPreference android:key="name" android:title="用户名" android:summary="填写你的用户名" android:dialogTitle="您所使用的用户名为: " /> <!-- 通过列表框选择性别 --> <ListPreference android:key="gender" android:title="性别" android:summary="选择您的性别" android:dialogTitle="ListPreference" android:entries="@array/gender_name_list" android:entryValues="@array/gender_value_list" /> </PreferenceCategory> <PreferenceCategory android:title="系统功能设置组"> <CheckBoxPreference android:key="autoSave" android:title="自动保存进度" android:summaryOn="自动保存 :开启" android:summaryOff="自动保存:关闭" android:defaultValue="true"/> </PreferenceCategory> </PreferenceScreen>数组文件:array.xml[html] <?xml version="1.0" encoding="utf-8"?> <resources> <string-array name="gender_name_list"> <item>男</item> <item>女</item> </string-array> <string-array name="gender_value_list"> <item>male</item> <item>female</item> </string-array> </resources> <?xml version="1.0" encoding="utf-8"?><resources><string-array name="gender_name_list"> <item>男</item> <item>女</item></string-array><string-array name="gender_value_list"> <item>male</item> <item>female</item></string-array></resources>创建第二个列表项的Activity:ExpandableListActivity.java[java] package wwj.otherActivity; import android.app.ExpandableListActivity; import android.os.Bundle; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.BaseExpandableListAdapter; import android.widget.ExpandableListAdapter; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; public class ExpandableListActivityTest extends ExpandableListActivity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); ExpandableListAdapter adapter = new BaseExpandableListAdapter() { int[] logos = new int[]{ R.drawable.p, R.drawable.z, R.drawable.t }; private String[] armTypes = new String[] {"神族兵种", "虫族兵种", "人族兵种"}; private String[][] arms = new String[][]{ {"狂战士", "龙骑士", "黑暗圣堂", "点兵"}, {"小狗", "刺蛇", "飞龙", "自爆飞机" }, {"机枪兵", "护士MM", "幽灵"} }; //获取指定组位置、指定子列表项处的子列表项数据 public Object getChild(int groupPosition, int childPosition) { // TODO Auto-generated method stub return arms[groupPosition][childPosition]; } public long getChildId(int groupPosition, int childPosition) { return childPosition;}; public int getChildrenCount(int groupPosition) { // TODO Auto-generated method stub return arms[groupPosition].length; } private TextView getTextView(){ AbsListView.LayoutParams lp = new AbsListView.LayoutParams( ViewGroup.LayoutParams.FILL_PARENT, 64); TextView textView = new TextView(ExpandableListActivityTest.this); textView.setLayoutParams(lp); textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT); textView.setPadding(36, 0, 0, 0); textView.setTextSize(20); return textView; } public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { // TODO Auto-generated method stub TextView textView = getTextView(); textView.setText(getChild(groupPosition, childPosition).toString()); return textView; } //获取指定位置处的组数据 public Object getGroup(int groupPosition) { return armTypes[groupPosition]; }; public int getGroupCount() { // TODO Auto-generated method stub return armTypes.length; } public long getGroupId(int groupPosition) { // TODO Auto-generated method stub return groupPosition; } public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { // TODO Auto-generated method stub LinearLayout ll = new LinearLayout(ExpandableListActivityTest.this); ll.setOrientation(0); ImageView logo = new ImageView(ExpandableListActivityTest.this); logo.setImageResource(logos[groupPosition]); ll.addView(logo); TextView textView = getTextView(); textView.setText(getGroup(groupPosition).toString()); ll.addView(textView); return ll; } public boolean hasStableIds() { // TODO Auto-generated method stub return true; } public boolean isChildSelectable(int groupPosition, int childPosition) { // TODO Auto-generated method stub return true; } }; //设置该窗口显示列表 setListAdapter(adapter); } }
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