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]);
    }
}

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);
    }
}

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" >
    
    <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">
        
        <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: "
            />
        
        <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" >

<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">
     
     <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: "
         />
     
     <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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Android开发学习之LauncherActivity开发启动的列表

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