Android开发学习之LauncherActivity开发启动的列表

来源：互联网发布：淘宝退款诈骗编辑：程序博客网时间：2024/05/21 07:03

创建项目：OtherActivity

项目运行结果：

加载中...

建立主Activity:OtherActivity.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]);     } }

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

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);     } }

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

<?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

<?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

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);     } }