08_UI控件

　　uiControl整体界面如下图所示，按照视频教程，学习控件由于是初学，都是最基础知识。还有ImageSwitcher、Gallery未更新，o(╯□╰)o

 1 package com.example.uiconrrol;
 2 
 3 import android.content.Context;
 4 import android.content.Intent;
 5 
 6 public class ListCellData {
 7 
 8     public ListCellData(Context context, String controlName,
 9             Intent relatedIntent) {
10         this.controlName = controlName;
11         this.context = context;
12         this.relatedIntent = relatedIntent;
13     }
14 
15     private String controlName = "";
16 
17     public String getControlName() {
18         return controlName;
19     }
20 
21     private Context context = null;
22 
23     public Context getContext() {
24         return context;
25     }
26 
27     private Intent relatedIntent = null;
28 
29     public Intent getRelatedIntent() {
30         return relatedIntent;
31     }
32 
33     public void startActivity() {
34         getContext().startActivity(getRelatedIntent());
35     }
36 
37     // 重写toString方法，只显示Name
38     @Override
39     public String toString() {
40         return getControlName();
41     }
42 
43 }

ListCellData

 1 package com.example.uiconrrol;
 2 
 3 import android.app.ListActivity;
 4 import android.content.Intent;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.widget.ArrayAdapter;
 8 import android.widget.ListView;
 9 
10 public class MainActivity extends ListActivity {
11 
12     private ArrayAdapter<ListCellData> adapter;
13 
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17 
18         adapter = new ArrayAdapter<ListCellData>(this,
19                 android.R.layout.simple_list_item_1);
20         setListAdapter(adapter);
21 
22         adapter.add(new ListCellData(this, "RadioGroup", new Intent(this,
23                 AtyUsingRadioGroup.class)));
24         adapter.add(new ListCellData(this, "CheckBox", new Intent(this,
25                 AtyUsingCheckBox.class)));
26         adapter.add(new ListCellData(this, "DatePicker", new Intent(this,
27                 AtyUsingDatePicker.class)));
28         adapter.add(new ListCellData(this, "TimePicker", new Intent(this,
29                 AtyUsingTimePicker.class)));
30         adapter.add(new ListCellData(this, "Spinner", new Intent(this,
31                 AtyUsingSpinner.class)));
32         adapter.add(new ListCellData(this, "ProgressBar", new Intent(this,
33                 AtyUsingProgressBar.class)));
34         adapter.add(new ListCellData(this, "SeekBar", new Intent(this,
35                 AtyUsingSeekBar.class)));
36         adapter.add(new ListCellData(this, "GridView", new Intent(this,
37                 AtyUsingGridView.class)));
38         adapter.add(new ListCellData(this, "ProgressDialog", new Intent(this,
39                 AtyUsingProgressDialog.class)));
40         adapter.add(new ListCellData(this, "Notification", new Intent(this,
41                 AtyUsingNotification.class)));
42         adapter.add(new ListCellData(this, "SrcollView", new Intent(this,
43                 AtyUsingSrcollView.class)));
44         adapter.add(new ListCellData(this, "RatingBar", new Intent(this,
45                 AtyUsingRatingBar.class)));
46     }
47 
48     @Override
49     protected void onListItemClick(ListView l, View v, int position, long id) {
50 
51         ListCellData data = adapter.getItem(position);
52         data.startActivity();
53 
54         super.onListItemClick(l, v, position, id);
55     }
56 
57 }

MainActivity

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3     package="com.example.uiconrrol"
 4     android:versionCode="1"
 5     android:versionName="1.0" >
 6 
 7     <uses-sdk
 8         android:minSdkVersion="8"
 9         android:targetSdkVersion="21" />
10 
11     <application
12         android:allowBackup="true"
13         android:icon="@drawable/ic_launcher"
14         android:label="@string/app_name"
15         android:theme="@style/AppTheme" >
16         <activity
17             android:name=".MainActivity"
18             android:label="@string/app_name" >
19             <intent-filter>
20                 <action android:name="android.intent.action.MAIN" />
21 
22                 <category android:name="android.intent.category.LAUNCHER" />
23             </intent-filter>
24         </activity>
25         <activity android:name="AtyUsingRadioGroup" >
26         </activity>
27         <activity android:name="AtyUsingCheckBox" >
28         </activity>
29         <activity android:name="AtyUsingDatePicker" >
30         </activity>
31         <activity android:name="AtyUsingTimePicker" >
32         </activity>
33         <activity android:name="AtyUsingSpinner" >
34         </activity>
35         <activity android:name="AtyUsingProgressBar" >
36         </activity>
37         <activity android:name="AtyUsingSeekBar" >
38         </activity>
39         <activity android:name="AtyUsingGridView" >
40         </activity>
41         <activity android:name="AtyUsingProgressDialog" >
42         </activity>
43         <activity android:name="AtyUsingNotification" >
44         </activity>
45         <activity android:name="AtyUsingSrcollView" >
46         </activity>
47         <activity android:name="AtyUsingRatingBar" >
48         </activity>
49     </application>
50 
51 </manifest>

AndroidManifest.xml

1. RadioGroup

　　介绍Android中如何使用RadioGroup和RadioButton，实现自定义的RadioGroup中被选中RadioButton的变更监听事件。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.app.AlertDialog;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.widget.RadioButton;
 8 
 9 public class AtyUsingRadioGroup extends Activity {
10 
11     private RadioButton radioRight;
12 
13     @Override
14     protected void onCreate(Bundle savedInstanceState) {
15         // TODO Auto-generated method stub
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.aty_using_radiogroup);
18 
19         radioRight = (RadioButton) findViewById(R.id.radioRight);
20 
21         findViewById(R.id.btnSubmit).setOnClickListener(
22                 new View.OnClickListener() {
23 
24                     @Override
25                     public void onClick(View v) {
26                         if (radioRight.isChecked()) {
27                             new AlertDialog.Builder(AtyUsingRadioGroup.this)
28                                     .setTitle("判断").setMessage("回答正确")
29                                     .setPositiveButton("Cancel", null).show();
30                         } else {
31                             new AlertDialog.Builder(AtyUsingRadioGroup.this)
32                                     .setTitle("判断").setMessage("回答错误")
33                                     .setPositiveButton("Cancel", null).show();
34                         }
35                     }
36                 });
37     }
38 }

AtyUsingRadioGroup

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <TextView
 8         android:id="@+id/textView1"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="老师是个帅哥吗？" />
12 
13     <RadioGroup
14         android:id="@+id/radioGroup1"
15         android:layout_width="wrap_content"
16         android:layout_height="wrap_content" >
17 
18         <RadioButton
19             android:id="@+id/radioRight"
20             android:layout_width="wrap_content"
21             android:layout_height="wrap_content"
22             android:text="是" />
23 
24         <RadioButton
25             android:id="@+id/radioNo"
26             android:layout_width="wrap_content"
27             android:layout_height="wrap_content"
28             android:text="不是" />
29 
30         <RadioButton
31             android:id="@+id/radio2"
32             android:layout_width="wrap_content"
33             android:layout_height="wrap_content"
34             android:text="不知道" />
35     </RadioGroup>
36 
37     <Button
38         android:id="@+id/btnSubmit"
39         android:layout_width="wrap_content"
40         android:layout_height="wrap_content"
41         android:text="提交" />
42 
43 </LinearLayout>

aty_using_radiogroup.xml

2. CheckBox

　　CheckBox是多项选择，允许用户用列表中选择一个或多个选项，它在android源代码中是继承CompoundButton类的，而CompoundButton类是继承于Button类的。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.app.AlertDialog;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.widget.Button;
 8 import android.widget.CheckBox;
 9 
10 public class AtyUsingCheckBox extends Activity {
11 
12     private CheckBox cbMifan, cbDoufu, cbXihongshi, cbTudou;
13     private Button btnSubmit;
14 
15     @Override
16     protected void onCreate(Bundle savedInstanceState) {
17         super.onCreate(savedInstanceState);
18         setContentView(R.layout.aty_using_checkbox);
19 
20         cbMifan = (CheckBox) findViewById(R.id.cbMifan);
21         cbDoufu = (CheckBox) findViewById(R.id.cbDoufu);
22         cbXihongshi = (CheckBox) findViewById(R.id.cbXihongshi);
23         cbTudou = (CheckBox) findViewById(R.id.cbTudou);
24 
25         btnSubmit = (Button) findViewById(R.id.btnSubmit);
26 
27         btnSubmit.setOnClickListener(new View.OnClickListener() {
28 
29             @Override
30             public void onClick(View v) {
31 
32                 String str = "中午要吃的是： \n";
33 
34                 if (cbMifan.isChecked()) {
35                     str += "米饭 \n";
36                 }
37                 if (cbDoufu.isChecked()) {
38                     str += "豆腐 \n";
39                 }
40                 if (cbXihongshi.isChecked()) {
41                     str += "西红柿 \n";
42                 }
43                 if (cbTudou.isChecked()) {
44                     str += "土豆";
45                 }
46 
47                 new AlertDialog.Builder(AtyUsingCheckBox.this).setTitle("结果")
48                         .setMessage(str).setPositiveButton("关闭", null).show();
49             }
50         });
51     }
52 }

AtyUsingCheckBox

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <TextView
 8         android:id="@+id/textView1"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="中午你打算吃什么？"
12         android:textAppearance="?android:attr/textAppearanceLarge" />
13 
14     <CheckBox
15         android:id="@+id/cbTudou"
16         android:layout_width="wrap_content"
17         android:layout_height="wrap_content"
18         android:text="土豆" />
19 
20     <CheckBox
21         android:id="@+id/cbXihongshi"
22         android:layout_width="wrap_content"
23         android:layout_height="wrap_content"
24         android:text="西红柿" />
25 
26     <CheckBox
27         android:id="@+id/cbMifan"
28         android:layout_width="wrap_content"
29         android:layout_height="wrap_content"
30         android:text="米饭" />
31 
32     <CheckBox
33         android:id="@+id/cbDoufu"
34         android:layout_width="wrap_content"
35         android:layout_height="wrap_content"
36         android:text="豆腐" />
37 
38     <Button
39         android:id="@+id/btnSubmit"
40         android:layout_width="wrap_content"
41         android:layout_height="wrap_content"
42         android:text="提交" />
43 
44 </LinearLayout>

aty_using_checkbox.xml

3. DatePicker

　　DatePicker是一个选择年月日的日历控件。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.app.DatePickerDialog;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.widget.Button;
 8 import android.widget.DatePicker;
 9 
10 public class AtyUsingDatePicker extends Activity {
11 
12     private Button btnDatePicer;
13 
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.aty_using_datepicker);
18 
19         btnDatePicer = (Button) findViewById(R.id.btnSelectDate);
20 
21         btnDatePicer.setOnClickListener(new View.OnClickListener() {
22 
23             @Override
24             public void onClick(View v) {
25                 new DatePickerDialog(AtyUsingDatePicker.this,
26                         new DatePickerDialog.OnDateSetListener() {
27 
28                             @Override
29                             public void onDateSet(DatePicker view, int year,
30                                     int monthOfYear, int dayOfMonth) {
31                                 btnDatePicer.setText(String.format("%d:%d:%d",
32                                         year, monthOfYear, dayOfMonth));
33                             }
34                         }, 2014, 10, 22).show();
35             }
36         });
37     }
38 }

AtyUsingDatePicker

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Button
 8         android:id="@+id/btnSelectDate"
 9         android:layout_width="match_parent"
10         android:layout_height="wrap_content"
11         android:text="0000:00:00" />
12 
13 </LinearLayout>

aty_using_datepicker.xml

4. TimePicker

　　TimePicker也继承自FrameLayout类，时间选择控件向用户显示一天中的时间(可以为24小时，也可以为AM/PM制)，并允许用户进行选择，如果要捕获用户修改时间数据的事件，便需要为TimePicker添加 OnTimeChangedListener监听器。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.app.TimePickerDialog;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.widget.Button;
 8 import android.widget.TimePicker;
 9 
10 public class AtyUsingTimePicker extends Activity {
11 
12     private Button btnSelectTime;
13 
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.aty_using_timepicker);
18 
19         btnSelectTime = (Button) findViewById(R.id.btnSelectTime);
20 
21         btnSelectTime.setOnClickListener(new View.OnClickListener() {
22 
23             @Override
24             public void onClick(View v) {
25 
26                 new TimePickerDialog(AtyUsingTimePicker.this,
27                         new TimePickerDialog.OnTimeSetListener() {
28 
29                             @Override
30                             public void onTimeSet(TimePicker view,
31                                     int hourOfDay, int minute) {
32                                 btnSelectTime.setText(String.format("%s:%s",
33                                         timeFormat(hourOfDay),
34                                         timeFormat(minute)));
35                             }
36                         }, 10, 25, true).show();
37             }
38         });
39     }
40 
41     public String timeFormat(int value) {
42         return (value >= 10) ? ("" + value) : ("0" + value);
43     }
44 }

AtyUsingTimePicker

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Button
 8         android:id="@+id/btnSelectTime"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="00:00" />
12 
13 </LinearLayout>

aty_using_timepicker.xml

5. Spinner

　　Spinner位于android.widget包下，每次只显示用户选中的元素，当用户再次点击时，会弹出选择列表供用户选择，而选择列表中的元素同样来自适配器，Spinner是View类的一个子类。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.widget.ArrayAdapter;
 6 import android.widget.Spinner;
 7 
 8 public class AtyUsingSpinner extends Activity {
 9 
10     private Spinner spinner;
11     private ArrayAdapter<String> adapter;
12 
13     @Override
14     protected void onCreate(Bundle savedInstanceState) {
15         super.onCreate(savedInstanceState);
16         setContentView(R.layout.aty_using_spinner);
17 
18         adapter = new ArrayAdapter<String>(this,
19                 android.R.layout.simple_spinner_item);
20         adapter.add("1");
21         adapter.add("2");
22         adapter.add("3");
23         adapter.add("4");
24 
25         spinner = (Spinner) findViewById(R.id.spinner);
26         spinner.setAdapter(adapter);
27     }
28 }

AtyUsingSpinner

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Spinner
 8         android:id="@+id/spinner"
 9         android:layout_width="match_parent"
10         android:layout_height="wrap_content" />
11 
12 </LinearLayout>

aty_using_spinner.xml

6. ProgressBar

　　ProgressBar是一个进度条控件，当用户在后台执行一些任务时，在前台展示的信息，用于表示任务正在处理，请用户等待或者给用户展示处理的进度消息等，它在android源代码中是直接继承View类的。

 1 package com.example.uiconrrol;
 2 
 3 import java.util.Timer;
 4 import java.util.TimerTask;
 5 
 6 import android.app.Activity;
 7 import android.os.Bundle;
 8 import android.widget.ProgressBar;
 9 
10 public class AtyUsingProgressBar extends Activity {
11 
12     private ProgressBar pb;
13 
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.aty_using_progressbar);
18 
19         pb = (ProgressBar) findViewById(R.id.progressBar);
20         pb.setMax(100);
21 
22     }
23 
24     @Override
25     protected void onResume() {
26         super.onResume();
27 
28         startTimer();
29     }
30 
31     @Override
32     protected void onPause() {
33         super.onPause();
34 
35         stopTimer();
36     }
37 
38     private int progress = 0;
39 
40     public void startTimer() {
41         if (timer == null) {
42             timer = new Timer();
43             task = new TimerTask() {
44 
45                 @Override
46                 public void run() {
47 
48                     progress++;
49                     pb.setProgress(progress);
50 
51                 }
52             };
53             timer.scheduleAtFixedRate(task, 1000, 500);
54         }
55     }
56 
57     public void stopTimer() {
58         if (timer != null) {
59             task.cancel();
60             timer.cancel();
61 
62             task = null;
63             timer = null;
64         }
65     }
66 
67     private Timer timer = null;
68     private TimerTask task = null;
69 }

AtyUsingProgressBar

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <ProgressBar
 8         android:id="@+id/progressBar2"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content" />
11 
12     <ProgressBar
13         android:id="@+id/progressBar3"
14         style="?android:attr/progressBarStyleLarge"
15         android:layout_width="wrap_content"
16         android:layout_height="wrap_content" />
17 
18     <ProgressBar
19         android:id="@+id/progressBar"
20         style="?android:attr/progressBarStyleHorizontal"
21         android:layout_width="fill_parent"
22         android:layout_height="wrap_content" />
23 
24 </LinearLayout>

aty_using_progressbar.xml

7. SeekBar

　　SeekBar控件其实是相对高级的进度条，是可以拖动的，可以改变进度的一个进度条控件。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.widget.SeekBar;
 6 import android.widget.TextView;
 7 
 8 public class AtyUsingSeekBar extends Activity {
 9 
10     private SeekBar seekBar;
11     private TextView txOut;
12 
13     @Override
14     protected void onCreate(Bundle savedInstanceState) {
15         super.onCreate(savedInstanceState);
16         setContentView(R.layout.aty_using_seekbar);
17 
18         txOut = (TextView) findViewById(R.id.txOut);
19 
20         seekBar = (SeekBar) findViewById(R.id.seekBar);
21         seekBar.setMax(100);
22         seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
23 
24             @Override
25             public void onStopTrackingTouch(SeekBar seekBar) {
26 
27             }
28 
29             @Override
30             public void onStartTrackingTouch(SeekBar seekBar) {
31 
32             }
33 
34             @Override
35             public void onProgressChanged(SeekBar seekBar, int progress,
36                     boolean fromUser) {
37                 txOut.setText(String.format("当前进度为：%d", progress) + "%");
38             }
39         });
40 
41     }
42 }

AtyUsingSeekBar

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <SeekBar
 8         android:id="@+id/seekBar"
 9         android:layout_width="match_parent"
10         android:layout_height="wrap_content" />
11 
12     <TextView
13         android:id="@+id/txOut"
14         android:layout_width="fill_parent"
15         android:layout_height="wrap_content"
16         android:text="TextView" />
17 
18 </LinearLayout>

aty_using_seekbar.xml

8. GridView

　　GridView(网格视图)是按照行列的方式来显示内容的，一般用于显示图片等内容，比如实现九宫格图，用GridView是首选，也是最简单的。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.widget.ArrayAdapter;
 6 import android.widget.GridView;
 7 
 8 public class AtyUsingGridView extends Activity {
 9 
10     private ArrayAdapter<String> adapter;
11     private GridView gridView;
12 
13     @Override
14     protected void onCreate(Bundle savedInstanceState) {
15         super.onCreate(savedInstanceState);
16         setContentView(R.layout.aty_using_gridview);
17 
18         adapter = new ArrayAdapter<String>(this,
19                 android.R.layout.simple_list_item_1);
20 
21         gridView = (GridView) findViewById(R.id.gridView);
22         gridView.setAdapter(adapter);
23 
24         for (int i = 0; i < 60; i++) {
25             adapter.add("Nankai" + i);
26         }
27     }
28 }

AtyUsingGridView

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <GridView
 8         android:id="@+id/gridView"
 9         android:layout_width="match_parent"
10         android:layout_height="fill_parent"
11         android:numColumns="3" >
12     </GridView>
13 
14 </LinearLayout>

aty_using_gridview.xml

9. ProgressDialog

　　ProgressDialog，顾名思义，就是一个进度对话框，常用于显示载入进度、下载进度等，合理使用ProgressDialog能增加用户体验，让用户知道现在程序所处的状态。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.app.ProgressDialog;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 
 8 public class AtyUsingProgressDialog extends Activity {
 9 
10     private ProgressDialog progressDialog;
11 
12     @Override
13     protected void onCreate(Bundle savedInstanceState) {
14         super.onCreate(savedInstanceState);
15         setContentView(R.layout.aty_using_progressdialog);
16 
17         findViewById(R.id.btnShowProgressDialog).setOnClickListener(
18                 new View.OnClickListener() {
19 
20                     @Override
21                     public void onClick(View v) {
22                         progressDialog = ProgressDialog.show(
23                                 AtyUsingProgressDialog.this, "加载中", "正在加载，请稍后");
24 
25                         new Thread() {
26                             public void run() {
27                                 try {
28                                     Thread.sleep(3000);
29 
30                                     progressDialog.dismiss();
31                                 } catch (InterruptedException e) {
32                                     e.printStackTrace();
33                                 }
34                             };
35                         }.start();
36                     }
37                 });
38     }
39 }

AtyUsingProgressDialog

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Button
 8         android:id="@+id/btnShowProgressDialog"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="Show Progress Dialog" />
12 
13 </LinearLayout>

aty_using_progressdialog.xml

10. Notification

　　Notification是Android中常用的一种通知方式，当有未读短信或未接电话的时候，屏幕状态栏就会有提示图标，这时可以下拉状态栏来读取通知。在使用微信的时（微信在后台运行），如果有新消息时便会发出声音提示，状态栏也有相应的微信提示。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.app.Notification;
 5 import android.app.NotificationManager;
 6 import android.app.PendingIntent;
 7 import android.content.Context;
 8 import android.os.Bundle;
 9 import android.view.View;
10 
11 public class AtyUsingNotification extends Activity {
12 
13     private NotificationManager nm;
14     
15     @Override
16     protected void onCreate(Bundle savedInstanceState) {
17         super.onCreate(savedInstanceState);
18         setContentView(R.layout.aty_using_notification);
19         
20         nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
21         nm.cancel(R.layout.aty_using_notification);
22         
23         findViewById(R.id.btnShowNotification).setOnClickListener(new View.OnClickListener() {
24             
25             @Override
26             public void onClick(View v) {
27                 Notification n = new Notification(R.drawable.ic_launcher, "Ticker Text", System.currentTimeMillis());
28                 n.setLatestEventInfo(AtyUsingNotification.this, "Title", "content", PendingIntent.getActivity(AtyUsingNotification.this, 1, getIntent(), 0));
29                 nm.notify(R.layout.aty_using_notification, n);
30             }
31         });
32     }
33 }

AtyUsingNotification

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Button
 8         android:id="@+id/btnShowNotification"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="Button" />
12 
13 </LinearLayout>

aty_using_notification.xml

11. ScrollView

　　ScrollView滚动视图是指当拥有很多内容，屏幕显示不完时，需要通过滚动跳来显示的视图。ScrollView只支持垂直滚动。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 
 6 public class AtyUsingSrcollView extends Activity {
 7 
 8     @Override
 9     protected void onCreate(Bundle savedInstanceState) {
10         super.onCreate(savedInstanceState);
11         setContentView(R.layout.aty_using_scrollview);
12     }
13 }

AtyUsingSrcollView

  1 <?xml version="1.0" encoding="utf-8"?>
  2 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
  3     android:layout_width="match_parent"
  4     android:layout_height="match_parent" >
  5 
  6     <LinearLayout
  7         android:layout_width="fill_parent"
  8         android:layout_height="wrap_content"
  9         android:orientation="vertical" >
 10 
 11         <TextView
 12             android:id="@+id/textView1"
 13             android:layout_width="wrap_content"
 14             android:layout_height="wrap_content"
 15             android:text="TextView" />
 16 
 17         <EditText
 18             android:id="@+id/editText1"
 19             android:layout_width="match_parent"
 20             android:layout_height="wrap_content"
 21             android:ems="10"
 22             android:inputType="textMultiLine" >
 23 
 24             <requestFocus />
 25         </EditText>
 26 
 27         <EditText
 28             android:id="@+id/editText2"
 29             android:layout_width="match_parent"
 30             android:layout_height="wrap_content"
 31             android:ems="10"
 32             android:inputType="textPersonName" />
 33 
 34         <Spinner
 35             android:id="@+id/spinner1"
 36             android:layout_width="match_parent"
 37             android:layout_height="wrap_content" />
 38 
 39         <Button
 40             android:id="@+id/button1"
 41             style="?android:attr/buttonStyleSmall"
 42             android:layout_width="wrap_content"
 43             android:layout_height="wrap_content"
 44             android:text="Button" />
 45 
 46         <EditText
 47             android:id="@+id/editText3"
 48             android:layout_width="match_parent"
 49             android:layout_height="wrap_content"
 50             android:ems="10"
 51             android:inputType="textPostalAddress" />
 52 
 53         <ProgressBar
 54             android:id="@+id/progressBar1"
 55             style="?android:attr/progressBarStyleLarge"
 56             android:layout_width="wrap_content"
 57             android:layout_height="wrap_content" />
 58 
 59         <Spinner
 60             android:id="@+id/spinner2"
 61             android:layout_width="match_parent"
 62             android:layout_height="wrap_content" />
 63 
 64         <RatingBar
 65             android:id="@+id/ratingBar1"
 66             android:layout_width="wrap_content"
 67             android:layout_height="wrap_content" />
 68 
 69         <RadioGroup
 70             android:id="@+id/radioGroup2"
 71             android:layout_width="wrap_content"
 72             android:layout_height="wrap_content" >
 73 
 74             <RadioButton
 75                 android:id="@+id/radio0"
 76                 android:layout_width="wrap_content"
 77                 android:layout_height="wrap_content"
 78                 android:checked="true"
 79                 android:text="RadioButton" />
 80 
 81             <RadioButton
 82                 android:id="@+id/radio1"
 83                 android:layout_width="wrap_content"
 84                 android:layout_height="wrap_content"
 85                 android:text="RadioButton" />
 86 
 87             <RadioButton
 88                 android:id="@+id/radio2"
 89                 android:layout_width="wrap_content"
 90                 android:layout_height="wrap_content"
 91                 android:text="RadioButton" />
 92         </RadioGroup>
 93 
 94         <RadioGroup
 95             android:id="@+id/radioGroup1"
 96             android:layout_width="wrap_content"
 97             android:layout_height="wrap_content" >
 98 
 99             <RadioButton
100                 android:id="@+id/radio3"
101                 android:layout_width="wrap_content"
102                 android:layout_height="wrap_content"
103                 android:checked="true"
104                 android:text="RadioButton" />
105 
106             <RadioButton
107                 android:id="@+id/radio4"
108                 android:layout_width="wrap_content"
109                 android:layout_height="wrap_content"
110                 android:text="RadioButton" />
111 
112             <RadioButton
113                 android:id="@+id/radio5"
114                 android:layout_width="wrap_content"
115                 android:layout_height="wrap_content"
116                 android:text="RadioButton" />
117         </RadioGroup>
118     </LinearLayout>
119 
120 </ScrollView>

aty_using_scrollview.xml

12. RatingBar

　　RatingBar是SeekBar和ProgressBar的扩展，用星星来评级，使用的默认大小RatingBar时，用户可以触摸/拖动或使用键来设置评分，它有大小两种样式，其中大的只适合指示，不适合于用户交互。

 1 package com.example.uiconrrol;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.widget.RatingBar;
 6 import android.widget.Toast;
 7 
 8 public class AtyUsingRatingBar extends Activity {
 9 
10     private RatingBar ratingBar;
11 
12     @Override
13     protected void onCreate(Bundle savedInstanceState) {
14         super.onCreate(savedInstanceState);
15         setContentView(R.layout.aty_using_ratingbar);
16 
17         ratingBar = (RatingBar) findViewById(R.id.ratingBar);
18         ratingBar
19                 .setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
20 
21                     @Override
22                     public void onRatingChanged(RatingBar ratingBar,
23                             float rating, boolean fromUser) {
24                         Toast.makeText(AtyUsingRatingBar.this,
25                                 "评价为： " + rating, Toast.LENGTH_SHORT).show();
26                     }
27                 });
28     }
29 }

AtyUsingRatingBar

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <RatingBar
 8         android:id="@+id/ratingBar"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content" />
11 
12 </LinearLayout>

aty_using_ratingbar.xml

posted @ 2014-10-31 15:18 Yano_nankai 阅读(848) 评论(1) 编辑收藏举报

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08_UI控件

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