Android学习08-----Android中的基本控件（下）(2)_ 对话框：Dialog
这篇我们来总结一下对话框 Dialog ，在我们做 Web 程序的时候想必大家都应该知道，对话框有的时候可以有效的给用户一个提示。废话少说，直接上代码：
1、 简单警告框
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.os.Bundle;
public class SimpleDialogActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main);
Dialog dialog = new AlertDialog.Builder(this).setTitle("对话框标题") // 创建标题
.setMessage("显示提示信息内容") // 表示对话框中的内容
.setIcon(R.drawable.ic_launcher) // 设置LOGO
.create(); // 创建了一个对话框
dialog.show(); // 显示对话框
}
}
2、 多种操作按钮
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setTitle("确定删除？")
// 创建标题
.setMessage("您确定要删除该条信息吗？")
// 表示对话框中的内容
.setIcon(R.drawable.ic_launcher)
// 设置LOGO
.setPositiveButton("删除",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setNeutralButton("查看详情",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
}).create(); // 创建了一个对话框
dialog.show(); // 显示对话框
}
}
}
3、退出按钮
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
public class DialogDemoActivity extends Activity {
private ImageButton but = null; // 定义按钮
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.but = (ImageButton) super.findViewById(R.id.but); // 取得按钮
this.but.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
DialogDemoActivity.this.exitDialog();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) { // 返回键
this.exitDialog();
}
return false;
}
private void exitDialog() {
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setTitle("程序退出？")
// 创建标题
.setMessage("您确定要退出本程序吗？")
// 表示对话框中的内容
.setIcon(R.drawable.ic_launcher)
// 设置LOGO
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
DialogDemoActivity.this.finish(); // 操作结束
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
}).create(); // 创建了一个对话框
dialog.show(); // 显示对话框
}
}
4、列表对话框
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
private TextView mych = null; // 定义文本
private String fruitData[] = new String[] { "苹果", "西瓜", "橘子" };
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mych = (TextView) super.findViewById(R.id.mych); // 取得文本
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setIcon(R.drawable.ic_launcher)
.setTitle("请选择你喜欢吃的水果？")
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setItems(DialogDemoActivity.this.fruitData,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
DialogDemoActivity.this.mych
.setText("您选择的水果是："
+ DialogDemoActivity.this.fruitData[which]);
}
}).create();
dialog.show();
}
}
}
5 、列表对话框（资源文件配置选项）
res/values/fruit_data.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="fruit_labels">
<item>苹果</item>
<item>西瓜</item>
<item>橘子</item>
</string-array>
</resources>
Activity
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class DialogDemoActivity extends Activity {
private Button mybut = null ; // 定义按钮
private TextView mych = null ; // 定义文本
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut) ; // 取得按钮
this.mych = (TextView) super.findViewById(R.id.mych) ; // 取得文本
this.mybut.setOnClickListener(new OnClickListenerImpl()) ; // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setIcon(R.drawable.ic_launcher)
.setTitle("请选择你喜欢吃的水果？")
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
}).setItems(R.array.fruit_labels, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
DialogDemoActivity.this.mych
.setText("您选择的水果是："
+ DialogDemoActivity.this
.getResources()
.getStringArray(
R.array.fruit_labels)[which]);
}
}).create() ;
dialog.show() ;
}
}
}
6 、单选对话框
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
private TextView mych = null; // 定义文本
private TextView mytext = null; // 定义文本
private String fruitData[] = new String[] { "苹果", "西瓜", "水蜜桃" };
private String fruitDesc[] = new String[] {
"苹果，植物类水果，多次花果，具有丰富的营养成分，有食疗、辅助治疗等功能。",
"西瓜（学名：Citrullus Lanatus，英文：Watermelon），属葫芦科，原产于非洲。",
"水蜜桃，在植物分类学上属于蔷薇科，梅属，桃亚属，为落叶小乔木。" };
private int chNum = 0; // 保存选项
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mych = (TextView) super.findViewById(R.id.mych); // 取得文本
this.mytext = (TextView) super.findViewById(R.id.mytext); // 取得文本
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setIcon(R.drawable.ic_launcher)
.setTitle("请选择你喜欢吃的水果？")
.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
DialogDemoActivity.this.mych
.setText(DialogDemoActivity.this.fruitData[DialogDemoActivity.this.chNum]); // 设置选项的名称
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setSingleChoiceItems(DialogDemoActivity.this.fruitData, 0,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
DialogDemoActivity.this.mytext
.setText(DialogDemoActivity.this.fruitDesc[which]);
DialogDemoActivity.this.chNum = which; // 保存选项的索引
}
}).create();
dialog.show();
}
}
}
7 、复选框对话框
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
private TextView mych = null; // 定义文本
private String fruitData[] = new String[] { "苹果", "西瓜", "水蜜桃" };
private boolean chData[] = new boolean[] { true, true, false };
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mych = (TextView) super.findViewById(R.id.mych); // 取得文本
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setIcon(R.drawable.ic_launcher)
.setTitle("请选择你喜欢吃的水果？")
.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setMultiChoiceItems(DialogDemoActivity.this.fruitData,
DialogDemoActivity.this.chData,
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which, boolean isChecked) {
for (int x = 0; x < DialogDemoActivity.this.fruitData.length; x++) {
if (x == which && isChecked) { // 当前选项被选中
DialogDemoActivity.this.mych
.append(DialogDemoActivity.this.fruitData[x]
+ "、");
}
}
}
}).create();
dialog.show();
}
}
}
8 、定制对话框
res/layout/login.xml
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TableRow >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dip"
android:text="用户名："
android:textSize="8pt" />
<EditText
android:layout_height="wrap_content"
android:width="60pt" />
</TableRow>
<TableRow >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dip"
android:text="密 码："
android:textSize="8pt" />
<EditText
android:layout_height="wrap_content"
android:password="true"
android:width="60pt" />
</TableRow>
</TableLayout>
Activity
package com.iflytek.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
LayoutInflater factory = LayoutInflater.from(DialogDemoActivity.this);
View myView = factory.inflate(R.layout.login, null);
Dialog dialog = new AlertDialog.Builder(DialogDemoActivity.this)
.setIcon(R.drawable.ic_launcher)
.setTitle("用户登录")
.setPositiveButton("登录",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
}).setView(myView).create();
dialog.show();
}
}
}
9 、日期对话框
package com.iflytek.demo;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new DatePickerDialog(DialogDemoActivity.this,
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
TextView text = (TextView) DialogDemoActivity.this
.findViewById(R.id.txt);
text.setText("更新的日期为：" + year + "-" + monthOfYear
+ "-" + dayOfMonth);
}
}, 1981, 8, 19); // 默认的年、月、日
dialog.show(); // 显示对话框
}
}
}
10 、设置时间对话框
package com.iflytek.demo;
import android.app.Activity;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
Dialog dialog = new TimePickerDialog(DialogDemoActivity.this,
new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker view, int hourOfDay,
int minute) {
TextView text = (TextView) DialogDemoActivity.this
.findViewById(R.id.txt);
text.setText("时间为：" + hourOfDay + ":" + minute);
}
}, 19, 20, true);
dialog.show(); // 显示对话框
}
}
}
11 、进度对话框
package com.iflytek.demo;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
final ProgressDialog proDia = ProgressDialog.show(
DialogDemoActivity.this, "搜索网络", "请耐心等待...");
new Thread() {
public void run() { // 线程的主体类
try {
Thread.sleep(3000); // 运行三秒
} catch (Exception e) {
} finally {
proDia.dismiss(); // 关闭对话框
}
}
}.start();
proDia.show(); // 显示对话框
}
}
}
12 、水平条进度
package com.iflytek.demo;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class DialogDemoActivity extends Activity {
private Button mybut = null; // 定义按钮
private static final int MAX_PROGRESS = 100; // 最大值
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View view) {
final ProgressDialog proDia = new ProgressDialog(
DialogDemoActivity.this);
proDia.setTitle("搜索网络");
proDia.setMessage("请耐心等待");
proDia.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); // 水平进度条
proDia.setMax(MAX_PROGRESS); // 设置进度的最大值
proDia.setProgress(30); // 从进度30开始
proDia.setButton("后台处理", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
proDia.dismiss(); // 关闭对话框
}
});
proDia.setButton2("详细信息", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
proDia.onStart(); // 启动进度
new Thread() {
public void run() { // 线程的主体类
for (int x = 0; x < MAX_PROGRESS; x++) {
try {
Thread.sleep(500); // 运行三秒
} catch (Exception e) {
}
proDia.incrementProgressBy(1);
}
proDia.dismiss();
}
}.start();
proDia.show(); // 显示对话框
}
}
}