Android开发学习控件

转载http://blog.csdn.net/dier4836/article/category/1094382

1.控件常用的属性
android:id //控件ID
android:text //控件显示的文本
android:grivity //控件内容位置 top bottom left right center_vertical
android:textSize //字体大小
android:background //背景颜色（RGB，如：#aa0000）
android:width //控件宽度
android:height //控件高度
android:padding //控件内边距大小
android:paddingLeft
android:paddingRight
android:paddingTop
android:paddingBottom
android:sigleLine //单行模式（true / false）
android:layout_weight //占容器大小权重（比例）

2.TextView

文本浏览控件，相当于Label，用于显示文本信息

android:id：控件ID
android:text：文本控件中的内容

3.Button：按钮
android:id：控件ID（@+id/myTextView）
android:layout_width：fill_parent
android:layout_height：wrap_content

4.EditText：相当于TextBox，用于编辑文本信息
获取文本框中的内容：txt.getText().toString();

5.Menu：菜单，点击菜单键后弹出的选项菜单

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        menu.add(0, 1, 1, R.string.exit); //组ID，项ID，排序ID，文字
        menu.add(0, 2, 2, R.string.about);
        return super.onCreateOptionsMenu(menu);
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if(item.getItemId() == 1){
            finish(); //表示结束应用程序
        }
        return super.onOptionsItemSelected(item);
    }

6.单选框：RadioGroup / RadioButton
一个RadioGroup包括多个RadioButton，用于分组，与HTML一样

rgroupSex.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {  
    public void onCheckedChanged(RadioGroup group, int checkedId) {  
        if (rbtnMale.getId() == checkedId) {  
            Toast.makeText(Control1Activity.this, "亲，你是男的喔！", Toast.LENGTH_SHORT).show();  
        }  
    }  
});  

7.复选框：CheckBox

chkRead.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        if(isChecked){
            Toast.makeText(Control1Activity.this, "亲，我也喜欢读书哈~", Toast.LENGTH_SHORT).show();
        }
    }
});

8.提示信息：Toast
一种消息提示的方式，会在屏幕下方中间显示出一段小提示文本

    Toast.makeText(Control1Activity.this, "亲，我也喜欢读书哈~", Toast.LENGTH_SHORT).show();

9.进度条：ProgressBar
//相关属性
style="?android:attr/progressBarStyleHorizontal" //水平进度条
style="?android:attr/progressBarStyle" //圆形进度图，无法显示进行的状态（百分比）
android:max="200" //进度条最大值，默认为100
android:visibility="gone" //不可见

progeressBar.setMax(123); //进度条最大值  
progeressBar.setVisibility(View.VISIBLE); //将进度条设置为可见  
progeressBar.setVisibility(View.GONE); //将进度条设置为不可见  
progeressBar.SetProgress(int); //进度条进度（颜色较深）  
progeressBar.SetSecondaryProgress(int); //进度条第二进度（颜色较浅）

10.列表：ListView
//布局文件

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <ListView   
        android:id="@id/android:list"  
        android:layout_width="fill_parent"  
        android:layout_height="fill_parent"  
        android:drawSelectorOnTop="false"  
        android:scrollbars="vertical"  
        android:padding="5px" />  
  
</LinearLayout>

//列表需要继承 ListActivity

[java] view plaincopy
 
public class Control2Activity extends ListActivity {  
  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.control2);  
  
        // 组织一下数据源  
        ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();  
        HashMap<String, String> hm1 = new HashMap<String, String>();  
        hm1.put("userName", "张三");  
        hm1.put("userAccount", "ZhengYongQiang");  
        list.add(hm1);  
        HashMap<String, String> hm2 = new HashMap<String, String>();  
        hm2.put("userName", "李四");  
        hm2.put("userAccount", "WengJiaXiong");  
        list.add(hm2);  
        HashMap<String, String> hm3 = new HashMap<String, String>();  
        hm3.put("userName", "王五");  
        hm3.put("userAccount", "LiLiXiang");  
        list.add(hm3);  
  
        // 绑定数据源  
        SimpleAdapter adapter = new SimpleAdapter(this, list,  
                R.layout.control2list,  
                new String[] { "userName", "userAccount" },   
                new int[] {R.id.lblUserName, R.id.lblUserAccount });  
        setListAdapter(adapter);  
  
        ListView lv = getListView();  
        lv.setOnItemClickListener(new OnItemClickListener() {  
            public void onItemClick(AdapterView<?> av, View v, int pos, long id) {  
                Toast.makeText(Control2Activity.this, "亲，你点击了：" + id, Toast.LENGTH_SHORT).show();  
            }  
        });  
    }  
}

11.Spinner的基本使用方法
1.布局文件

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <Spinner  
        android:id="@+id/ddlCity"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content" />  
  
</LinearLayout>

2.在string.xml创建一个数组

[html] view plaincopy
 
<string-array name="array_count">  
    <item>1</item>  
    <item>2</item>  
</string-array>

3.代码绑定

[java] view plaincopy
 
public class SpinnerActivity extends Activity {  
  
    Spinner ddlCity = null;  
  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.spinner);  
  
        ddlCity = (Spinner) findViewById(R.id.ddlCity);  
        ddlCity.setOnItemSelectedListener(new OnItemSelectedListener() {  
            public void onItemSelected(AdapterView<?> adapterView, View view, int position, long id) {  
                Toast.makeText(SpinnerActivity.this, "亲，你选择了" + adapterView.getItemAtPosition(position).toString(), 3000).show();  
            }  
  
            public void onNothingSelected(AdapterView<?> adapterView) {  
                Toast.makeText(SpinnerActivity.this, "亲，你先一个吧！", 3000).show();  
            }  
        });  
  
        // 第一种方法：通过string.xml中的数组创建  
        // ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(SpinnerActivity.this,  
        // R.array.array_city, android.R.layout.simple_spinner_item);  
  
        // 第二种方法：通过一个List动态加载数据  
        List<String> list = new ArrayList<String>();  
        list.add("福州");  
        list.add("漳州");  
        list.add("厦门");  
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(SpinnerActivity.this, android.R.layout.simple_spinner_item, list);  
  
        // 设置下拉列表样式  
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);  
  
        ddlCity.setAdapter(adapter);  
        ddlCity.setPrompt("请选择城市：");  
    }  
}

12.DatePicker和DatePickerDialog的基本使用
//布局文件

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <LinearLayout  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:layout_marginTop="10dp"  
        android:orientation="horizontal" >  
  
        <TextView  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            android:text="@string/remindDate" />  
  
        <EditText  
            android:id="@+id/txtDate"  
            android:layout_width="fill_parent"  
            android:layout_height="wrap_content"  
            android:inputType="date" />  
    </LinearLayout>  
  
    <LinearLayout  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:layout_marginTop="10dp"  
        android:orientation="horizontal" >  
  
        <TextView  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            android:text="@string/remindTime" />  
  
        <EditText  
            android:id="@+id/txtTime"  
            android:layout_width="fill_parent"  
            android:layout_height="wrap_content"  
            android:inputType="time" />  
    </LinearLayout>  
  
</LinearLayout>

//编码

[java] view plaincopy
 
public class PickerActivity extends Activity {  
  
    EditText txtDate = null;  
    EditText txtTime = null;  
  
    private static final int DIALOG_DATE_ID = 1;  
    private static final int DIALOG_TIME_ID = 2;  
  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.picker);  
  
        txtDate = (EditText) findViewById(R.id.txtDate);  
        txtTime = (EditText) findViewById(R.id.txtTime);  
  
        txtDate.setOnFocusChangeListener(new OnFocusChangeListener() {  
            public void onFocusChange(View v, boolean hasFocus) {  
                if (hasFocus)  
                    showDialog(DIALOG_DATE_ID);  
            }  
        });  
  
        txtTime.setOnFocusChangeListener(new OnFocusChangeListener() {  
            public void onFocusChange(View v, boolean hasFocus) {  
                if (hasFocus)  
                    showDialog(DIALOG_TIME_ID);  
            }  
        });  
  
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.activity_list_item, REMIND_LIST);  
        txtRemind.setAdapter(adapter);  
    }  
  
    DatePickerDialog.OnDateSetListener onDateSetListener = new OnDateSetListener() {  
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {  
            txtDate.setText(year + "-" + (monthOfYear + 1) + "-" + dayOfMonth);  
        }  
    };  
  
    TimePickerDialog.OnTimeSetListener onTimeSetListener = new OnTimeSetListener() {  
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {  
            txtTime.setText(hourOfDay + ":" + minute);  
        }  
    };  
  
    @Override  
    protected Dialog onCreateDialog(int id) {  
        switch (id) {  
        case DIALOG_DATE_ID:  
            new DatePickerDialog(this, onDateSetListener, 2012, 1, 14).show();  
            break;  
        case DIALOG_TIME_ID:  
            new TimePickerDialog(this, onTimeSetListener, 13, 14, true).show();  
            break;  
        }  
        return super.onCreateDialog(id);  
    }  
}

13.AutoCompleteTextView的基本使用
//布局文件

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <LinearLayout  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:layout_marginTop="10dp"  
        android:orientation="horizontal" >  
  
        <TextView  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            android:text="@string/remindText" />  
  
        <AutoCompleteTextView  
            android:id="@+id/txtRemind"  
            android:layout_width="fill_parent"  
            android:layout_height="wrap_content" />  
    </LinearLayout>  
  
</LinearLayout>

//编码

[java] view plaincopy
 
public class PickerActivity extends Activity {  
  
    AutoCompleteTextView txtRemind = null;  
  
    private static final String[] REMIND_LIST = new String[] {  
            "闹钟模式", "节日提醒", "会议提醒", "特殊提醒",  
            "ClockRemind", "DayRemind", "MeetingRemind", "OtherRemind"  
    };  
  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.picker);  
  
        txtDate = (EditText) findViewById(R.id.txtDate);  
        txtTime = (EditText) findViewById(R.id.txtTime);  
        txtRemind = (AutoCompleteTextView) findViewById(R.id.txtRemind);  
  
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.activity_list_item, REMIND_LIST);  
        txtRemind.setAdapter(adapter);  
    }  
}

14.ExpandableListActivity的基本使用方法
1.在布局文件中声明对象

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <ExpandableListView  
        android:id="@id/android:list"  
        android:layout_width="fill_parent"  
        android:layout_height="fill_parent"  
        android:drawSelectorOnTop="false" />  
  
    <TextView  
        android:id="@id/android:empty"  
        android:layout_width="fill_parent"  
        android:layout_height="fill_parent"  
        android:text="No Data" />  
  
</LinearLayout>

2.在而已文件中声明group的样式group.xml

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="horizontal" >  
  
    <TextView   
        android:id="@+id/lblExpListGroup"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"   
        android:layout_marginLeft="40dp"  
        android:layout_marginTop="10dp"  
        android:layout_marginBottom="10dp"  
        android:textSize="20dp" />  
      
</LinearLayout>

3.在而已文件当中声明子项的样式child.xml

[html] view plaincopy
 
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="horizontal" >  
  
    <TextView   
        android:id="@+id/lblExpListItem"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"   
        android:layout_marginLeft="50dp"  
        android:layout_marginTop="10dp"  
        android:layout_marginBottom="10dp"  
        android:textSize="16dp" />  
</LinearLayout>

4.创建一个Activity，继承ExpandableListActivity
5.为group创建数据
6.为child创建数据
7.绑定数据

[java] view plaincopy
 
public class ExpListActivity extends ExpandableListActivity {  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.explist);  
  
        //列表组数据  
        List<Map<String, String>> groups = new ArrayList<Map<String, String>>();  
        Map<String, String> group1 = new HashMap<String, String>();  
        group1.put("name", "列表组1");  
        groups.add(group1);  
        Map<String, String> group2 = new HashMap<String, String>();  
        group2.put("name", "列表组2");  
        groups.add(group2);  
  
        //列表组1数据  
        List<Map<String, String>> item1 = new ArrayList<Map<String, String>>();  
        Map<String, String> item11 = new HashMap<String, String>();  
        item11.put("name", "列表组1子项1");  
        item1.add(item11);  
        Map<String, String> item12 = new HashMap<String, String>();  
        item12.put("name", "列表组1子项2");  
        item1.add(item12);  
  
        //列表组2数据  
        List<Map<String, String>> item2 = new ArrayList<Map<String, String>>();  
        Map<String, String> item21 = new HashMap<String, String>();  
        item21.put("name", "列表组2子项1");  
        item2.add(item21);  
        Map<String, String> item22 = new HashMap<String, String>();  
        item22.put("name", "列表组2子项2");  
        item2.add(item22);  
          
        //列表项数据  
        List<List<Map<String,String>>> items = new ArrayList<List<Map<String,String>>>();  
        items.add(item1);  
        items.add(item2);  
          
        //创建适配器  
        SimpleExpandableListAdapter adapter = new SimpleExpandableListAdapter(ExpListActivity.this,   
                groups, R.layout.explistgroup, new String[] { "name" }, new int[] { R.id.lblExpListGroup },  
                items, R.layout.explistitem, new String[] { "name" }, new int[] { R.id.lblExpListItem });  
          
        //绑定  
        setListAdapter(adapter);  
    }  
}

15.SeekBar的基本使用方法
进度条，可滑动，设置音量、音乐进度等

1.在布局文件中声明

[html] view plaincopy
 
<SeekBar  
    android:id="@+id/sbar"  
    android:layout_width="fill_parent"  
    android:layout_height="wrap_content" />

2.定义一个监听器

[java] view plaincopy
 
private class SeekBarListener implements SeekBar.OnSeekBarChangeListener{  
    @Override //滑块改变触发  
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser){  
        System.out.println("Changed : " + progress);  
    }  
    @Override //滑块开始改变时触发  
    public void onStartTrackingTouch(SeekBar seekBar){  
        System.out.println("Start : " + seekBar.getProgress());  
    }  
    @Override //滑块停止改变时触发  
    public void onStopTrackingTouch(SeekBar seekBar){  
        System.out.println("Stop : " + seekBar.getProgress());  
    }  
}

3.实例

[java] view plaincopy
 
seekBar = (SeekBar)findViewById(R.id.sbar);  
seekBar.setMax(100); //设置最大进度  
seekBar.setOnSeekBarChangeListener(new SeekBarListener()); //绑定事件

16.RatingBar的基本使用方法
打分条，几个五角星，可以供用户打分

1.在布局文件中声明

[html] view plaincopy
 
<RatingBar  
    android:id="@+id/rbar"  
    android:layout_width="wrap_content"  
    android:layout_height="wrap_content"  
    android:numStars="5"  
    android:stepSize="1.0" />

2.定义一个监听器

[java] view plaincopy
 
private class RatingBarListener implements RatingBar.OnRatingBarChangeListener{  
    @Override  
    public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser){  
        System.out.println("rating : " + rating);  
    }  
}

3.绑定

[java] view plaincopy
 
ratingBar.setOnRatingBarChangeListener(new RatingBarListener());

posted @ 2015-02-10 14:06 郑州-在路上阅读(66) 评论(0) 编辑收藏举报

刷新页面返回顶部

登录后才能查看或发表评论，立即登录或者逛逛博客园首页

阅读排行：
· TypeScript + Deepseek 打造卜卦网站：技术与玄学的结合
· Manus的开源复刻OpenManus初探
· 写一个简单的SQL生成工具
· AI 智能体引爆开源社区「GitHub 热点速览」
· C#/.NET/.NET Core技术前沿周刊 | 第 29 期（2025年3.1-3.9）

郑州-在路上

在路上有你更精彩！

Android开发学习控件

公告

搜索

我的标签

随笔分类

随笔档案

文章分类

相册

阅读排行榜

评论排行榜

推荐排行榜

最新评论