android 学习随笔十九(对话框、样式、主题、国际化 )

1、对话框

  1 package com.itheima.dialog;
  2 
  3 import android.os.Bundle;
  4 import android.app.Activity;
  5 import android.app.AlertDialog;
  6 import android.app.AlertDialog.Builder;
  7 import android.app.ProgressDialog;
  8 import android.content.DialogInterface;
  9 import android.content.DialogInterface.OnClickListener;
 10 import android.content.DialogInterface.OnMultiChoiceClickListener;
 11 import android.view.Menu;
 12 import android.view.View;
 13 import android.widget.Toast;
 14 
 15 public class MainActivity extends Activity {
 16 
 17     @Override
 18     protected void onCreate(Bundle savedInstanceState) {
 19         super.onCreate(savedInstanceState);
 20         setContentView(R.layout.activity_main);
 21     }
 22 
 23 
 24     public void click1(View v){
 25         //创建对话框创建器
 26         AlertDialog.Builder builder = new Builder(this);
 27         //设置图标
 28         builder.setIcon(android.R.drawable.ic_dialog_alert);
 29         //设置标题
 30         builder.setTitle("警告");
 31         //设置内容
 32         builder.setMessage("欲练此功必先自宫,春晓你确定要自宫吗");
 33         
 34         //设置确定按钮
 35         builder.setPositiveButton("确定", new OnClickListener() {
 36             
 37             @Override
 38             public void onClick(DialogInterface dialog, int which) {
 39                 Toast.makeText(MainActivity.this, "自宫完成,谢谢使用", 0).show();
 40                 
 41             }
 42         });
 43         //设置取消按钮
 44         builder.setNegativeButton("取消", new OnClickListener() {
 45             
 46             @Override
 47             public void onClick(DialogInterface dialog, int which) {
 48                 Toast.makeText(MainActivity.this, "若不自宫,一定不成功", 0).show();
 49                 
 50             }
 51         });
 52         
 53         //显示对话框
 54         AlertDialog ad = builder.create();
 55         ad.show();
 56     }
 57     
 58     public void click2(View v){
 59         //创建对话框创建器
 60         AlertDialog.Builder builder = new Builder(this);
 61         //设置图标
 62         builder.setIcon(android.R.drawable.ic_dialog_alert);
 63         //设置标题
 64         builder.setTitle("选择您的家乡");
 65         
 66         final String[] items = new String[]{
 67                 "火星",
 68                 "塞伯坦",
 69                 "氪星",
 70                 "M78星云",
 71         };
 72         
 73         //设置单选选项
 74         builder.setSingleChoiceItems(items, 1, new OnClickListener() {
 75             
 76             //dialog:触发此方法执行的那个对话框
 77             @Override
 78             public void onClick(DialogInterface dialog, int which) {
 79                 Toast.makeText(MainActivity.this, items[which], 0).show();
 80                 //对话框消失
 81                 dialog.dismiss();
 82                 
 83             }
 84         });
 85         
 86         //显示对话框
 87         builder.show();
 88     }
 89     
 90     public void click3(View v){
 91         //创建对话框创建器
 92         AlertDialog.Builder builder = new Builder(this);
 93         //设置图标
 94         builder.setIcon(android.R.drawable.ic_dialog_alert);
 95         //设置标题
 96         builder.setTitle("选择您需要的武器");
 97         
 98         final String[] items = new String[]{
 99                 "板凳",
100                 "啤酒瓶",
101                 "开山刀",
102                 "AK-47",
103                 "爱国者",
104                 "唐晓平"
105         };
106         
107         final boolean[] checkedItems = new boolean[]{
108                 true,
109                 false,
110                 false,
111                 false,
112                 false,
113                 true
114         };
115         
116         //设置多选选项
117         builder.setMultiChoiceItems(items, checkedItems, new OnMultiChoiceClickListener() {
118             
119             @Override
120             public void onClick(DialogInterface dialog, int which, boolean isChecked) {
121                 //记录用户的选择
122                 checkedItems[which] = isChecked;
123             }
124         });
125         builder.setPositiveButton("确定", new OnClickListener() {
126             
127             @Override
128             public void onClick(DialogInterface dialog, int which) {
129                 String text = "";
130                 for (int i = 0; i < checkedItems.length; i++) {
131                     text += checkedItems[i]? items[i] + ",": "";
132                 }
133                 Toast.makeText(MainActivity.this, text, 0).show();
134                 
135             }
136         });
137         
138         builder.show();
139     }
140     
141     public void click4(View v){
142         //创建进度条对话框
143         final ProgressDialog dialog = new ProgressDialog(this);
144         dialog.setIcon(android.R.drawable.ic_input_add);
145         dialog.setTitle("正在自宫中,请稍候...");
146         dialog.setMax(100);
147         dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
148         Thread t = new Thread(){
149             public void run() {
150                 for (int i = 0; i <= 100; i++) {
151                     dialog.setProgress(i);
152                     try {
153                         sleep(20);
154                     } catch (InterruptedException e) {
155                         // TODO Auto-generated catch block
156                         e.printStackTrace();
157                     }
158                 }
159                 //自宫完成,进度消失
160                 dialog.dismiss();
161             }
162         };
163         t.start();
164         dialog.show();
165     }
166 }
View Code
 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context=".MainActivity" 
10     android:orientation="vertical"
11     >
12 
13     <Button
14         android:layout_width="wrap_content"
15         android:layout_height="wrap_content"
16         android:text="确定取消对话框" 
17         android:onClick="click1"
18         />
19     <Button
20         android:layout_width="wrap_content"
21         android:layout_height="wrap_content"
22         android:text="单选对话框" 
23         android:onClick="click2"
24         />
25     <Button
26         android:layout_width="wrap_content"
27         android:layout_height="wrap_content"
28         android:text="多选对话框" 
29         android:onClick="click3"
30         />
31     <Button
32         android:layout_width="wrap_content"
33         android:layout_height="wrap_content"
34         android:text="进度条对话框" 
35         android:onClick="click4"
36         />
37 
38 </LinearLayout>
View Code

2、样式和主题

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context=".MainActivity" 
10     android:orientation="vertical"
11     >
12 
13     <TextView
14         android:text="@string/hello_world" 
15         style="@style/lakesouthstyle"
16         />
17     <TextView
18         android:text="@string/hello_world" 
19         style="@style/chunxiaostyle"
20         />
21     <TextView
22         android:text="@string/hello_world" 
23         style="@style/lakesouthstyle.miaorunstyle"
24         />
25     <TextView
26         android:text="@string/hello_world" 
27         style="@style/lakesouthstyle"
28         />
29 
30 </LinearLayout>
View Code

在values目录下定义样式,主题和样式定义相同,主题应用在清单文件中(主题用于Activity),样式应用在布局文件中

 1 <resources xmlns:android="http://schemas.android.com/apk/res/android">
 2 
 3     <!--
 4         Base application theme, dependent on API level. This theme is replaced
 5         by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
 6     -->
 7     <style name="AppBaseTheme" parent="android:Theme.Light">
 8         <!--
 9             Theme customizations available in newer API levels can go in
10             res/values-vXX/styles.xml, while customizations related to
11             backward-compatibility can go here.
12         -->
13     </style>
14 
15     <!-- Application theme. -->
16     <style name="AppTheme" parent="AppBaseTheme">
17         <!-- All customizations that are NOT specific to a particular API-level can go here. -->
18         <item name="android:background">#ff0000</item>
19     </style>
20     
21     <style name="lakesouthstyle">
22         <item name="android:layout_width">wrap_content</item>
23         <item name="android:layout_height">wrap_content</item>
24         <item name="android:textSize">30sp</item>
25         <item name="android:textColor">#00ff00</item>
26     </style>
27     <style name="chunxiaostyle" parent="lakesouthstyle">
28         <item name="android:textSize">20sp</item>
29     </style>
30     <style name="lakesouthstyle.miaorunstyle">
31         <item name="android:textColor">#ff0000</item>
32     </style>
33 
34 </resources>
View Code

3、国际化  

根据语言需求定义values,values_zh,values_it,drawable-en-rUS(找出国家语言简写)等定义资源。

 文本国际化

1 <?xml version="1.0" encoding="utf-8"?>
2 <resources>
3 
4     <string name="app_name">11_国际化</string>
5     <string name="action_settings">Settings</string>
6     <string name="hello_world">这是英文的你好世界</string>
7 
8 </resources>
values,英文
1 <?xml version="1.0" encoding="utf-8"?>
2 <resources>
3 
4     <string name="app_name">11_国际化</string>
5     <string name="action_settings">Settings</string>
6     <string name="hello_world">这是中文的你好世界</string>
7 
8 </resources>
values-zh
1 <?xml version="1.0" encoding="utf-8"?>
2 <resources>
3 
4     <string name="app_name">11_国际化</string>
5     <string name="action_settings">Settings</string>
6     <string name="hello_world">这是意大利文的你好世界</string>
7 
8 </resources>
values-it

图片也可以国际化,定义drawable-en-rGB、drawable-en-rUS等

posted @ 2016-09-29 14:18  ecollab  阅读(242)  评论(0编辑  收藏  举报