Android_对话框
目录
一、消息提示对话框
二、确认对话框
三、列表对话框
四、单选对话框
五、多选对话框
六、自定义对话框
七、PopupWindow
八、日期选择器
九、时间选择器
十、按返回键确认退出
十一、点击两次返回退出
十二、进度框
一、消息提示对话框
//1.创建AlertDialog.Builder对象
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//2.设置图标、标题、内容、按钮等区域
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("消息提示");
builder.setMessage("消息提示");
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this,"点击了确定",Toast.LENGTH_SHORT).show();
}
} );
//3.调用create()方法创建,调用show()方法显示对话框
builder.create().show();
二、确认对话框
new AlertDialog.Builder(this)
.setIcon(R.mipmap.ic_launcher)
.setTitle("确认退出")
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//结束当前Activity生命周期
finish();
//Toast.makeText(MainActivity.this,"点击了确定",Toast.LENGTH_SHORT).show();
}
} )
.setNegativeButton("取消",null)
.show();
三、列表对话框
final String[] arr = {
"江苏",
"常州",
"钟楼区"
};
new AlertDialog.Builder(this)
.setIcon(R.mipmap.ic_launcher)
.setTitle("地区")
.setItems(arr, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//显示用户选择
Toast.makeText(MainActivity.this,arr[which],Toast.LENGTH_SHORT).show();
}
})
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
} )
.show();
四、单选对话框
int selectedId = 0 ;
public void onClick_4(View v) {
final String[] arr = {
"1星","2星","3星","4星","5星"
};
new AlertDialog.Builder(this)
.setIcon(R.mipmap.ic_launcher)
.setTitle("评分")
.setSingleChoiceItems(arr, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
selectedId = which;
Toast.makeText(MainActivity.this,"你选择了："+arr[which],Toast.LENGTH_SHORT).show();
}
})
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this,"你确定了："+arr[selectedId],Toast.LENGTH_SHORT).show();
}
} )
.show();
}
五、多选对话框
ArrayList<Integer> choice = new ArrayList <Integer>();
public void onClick_5(View v) {
final String[] arr = {
"1星","2星","3星","4星","5星"
};
choice.clear();
new AlertDialog.Builder(this)
.setIcon(R.mipmap.ic_launcher)
.setTitle("评分")
.setMultiChoiceItems(
arr,
new boolean[]{false, false, false, false, false},
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
if(isChecked){
choice.add(which);
}else{
choice.remove(which);
}
Toast.makeText(MainActivity.this,"你选择了："+choice.toString(),Toast.LENGTH_SHORT).show();
}
}
)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this,"你确定了："+choice.toString(),Toast.LENGTH_SHORT).show();
}
} )
.show();
}
六、自定义对话框
1.自定义.xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#fff"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#0e2438"
android:gravity="center"
android:orientation="horizontal"
>
<TextView
android:text="提醒"
android:textSize="18sp"
android:textColor="#fff"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical"
android:padding="10dp"
>
<TextView
android:text="恭喜您,验证码发送成功"
android:textSize="18sp"
android:textColor="#000"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btn"
android:text="确定"
android:textColor="#fff"
android:textSize="16sp"
android:layout_width="80dp"
android:layout_height="40dp"
android:background="@drawable/btn_selector"
android:layout_marginTop="10dp"/>
</LinearLayout>
</LinearLayout>
2.编写Activity
Dialog dialog;
public void onClick_6(View v) {
//1.获取LayoutInflater对象
LayoutInflater inflater = LayoutInflater.from(this);
//2.调用inflate()方法获取View对象
final View myView = inflater.inflate(R.layout.layout_myself_dialog,null);
//3.调用Builder对象的setView()方法设置View
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(myView);
//4.获取输入内容或者监听点击事件等
myView.findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog = builder.create();
dialog.show();
}
七、PopupWindow
PopupWindow popup;
public void onClick_7(View v) {
//1.获取LayoutInflater对象
LayoutInflater inflater = LayoutInflater.from(this);
//2.调用inflate()方法获取View对象
final View myView = inflater.inflate(R.layout.layout_myself_dialog,null);
//3.创建PopupWindow对象
popup = new PopupWindow(myView,600,550);//px
//4.获取输入内容或者监听点击事件等
myView.findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
popup.dismiss();
}
});
//5.调用PopupWindow显示方法
//以下拉显示窗口
//popup.showAsDropDown(v);
//在指定位置上显示窗口
popup.showAtLocation(v, Gravity.CENTER,0,0);//偏移量
}
八、日期选择器
Calendar c = Calendar.getInstance();
// 直接创建一个DatePickerDialog对话框实例，并将它显示出来
new DatePickerDialog(this,
// 绑定监听器
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker dp, int year,
int month, int dayOfMonth) {
String text = "您选择了：" + year + "年" + (month + 1)
+ "月" + dayOfMonth + "日";
Toast.makeText(MainActivity.this, text,
Toast.LENGTH_LONG).show();
}
}
//设置初始日期
, c.get(Calendar.YEAR)
, c.get(Calendar.MONTH)
, c.get(Calendar.DAY_OF_MONTH)).show();
九、时间选择器
Calendar c = Calendar.getInstance();
// 创建一个TimePickerDialog实例，并把它显示出来。
new TimePickerDialog(this,
// 绑定监听器
new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker tp, int hourOfDay,
int minute) {
String text = "您选择了：" + hourOfDay + "时" + minute
+ "分";
Toast.makeText(MainActivity.this, text,
Toast.LENGTH_LONG).show();
}
}
//设置初始时间
, c.get(Calendar.HOUR_OF_DAY)
, c.get(Calendar.MINUTE)
//true表示采用24小时制
, true).show();
十、按返回键确认退出
public void onBackPressed() {
new AlertDialog.Builder(this)
.setIcon(R.mipmap.ic_launcher)
.setTitle("确认退出")
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//结束当前Activity生命周期
System.exit(0);
//Toast.makeText(MainActivity.this,"点击了确定",Toast.LENGTH_SHORT).show();
}
} )
.setNegativeButton("取消",null)
.show();
}
十一、点击两次返回退出
private long mExitTime;
public void onBackPressed() {
if ((System.currentTimeMillis() - mExitTime) > 2000) {
Toast.makeText(this, "在按一次退出",
Toast.LENGTH_SHORT).show();
mExitTime = System.currentTimeMillis();
} else {
finish();
}
}
十二、进度框
ProgressDialog pd; Handler handler = new Handler(){ //主线程 public void handleMessage(Message msg) { if(msg.what == 0){ pd.dismiss(); }else if (msg.what == 1){ pd.setProgress(msg.arg1); } } }; public void onClick(View v){ showProgress(); //新建子线程 new Thread(){ @Override public void run() { for(int i = 1 ;i<= 10 ; i++){ try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } Message msg = Message.obtain(); msg.arg1 = i; msg.what = 1; handler.sendMessage(msg); } handler.sendEmptyMessage(0); } }.start(); } /* * 环形进度框 * */ public void showProgress_1(){ pd = new ProgressDialog(this); pd.setTitle("任务执行中"); pd.setMessage("任务执行中,请稍候..."); //设置可取消 pd.setCancelable(true); pd.setProgressStyle(ProgressDialog.STYLE_SPINNER); pd.show(); } /* * 水平进度框 * */ public void showProgress(){ pd = new ProgressDialog(this); pd.setTitle("任务执行中"); pd.setMessage("任务执行中,请稍候..."); //设置可取消 pd.setCancelable(true); pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); pd.setMax(10); pd.show(); }
