Android 不推荐使用 showDialog。什么是替代方案？
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showDialog deprecated. What's the alternative?
提问by Denis
Is there something else that should be called?
还有什么应该叫的吗？
showDialog(TIME_DIALOG_ID);
It's in this tutorialbut says deprecatedin Eclipse.
它在本教程中，但在 Eclipse 中已弃用。
采纳答案by Md Mahbubur Rahman
From http://developer.android.com/reference/android/app/Activity.html
来自http://developer.android.com/reference/android/app/Activity.html
public final void showDialog (int id) Added in API level 1
This method was deprecated in API level 13. Use the new DialogFragment class with FragmentManager instead; this is also available on older platforms through the Android compatibility package.
Simple version of showDialog(int, Bundle) that does not take any arguments. Simply calls showDialog(int, Bundle) with null arguments.
public final void showDialog (int id) 在 API 级别 1 中添加
此方法在 API 级别 13 中已弃用。请改用带有 FragmentManager 的新 DialogFragment 类；这也可以通过 Android 兼容包在旧平台上使用。
不带任何参数的 showDialog(int, Bundle) 的简单版本。只需使用空参数调用 showDialog(int, Bundle) 即可。
Why
为什么
- A fragment that displays a dialog window, floating on top of its activity's window. This fragment contains a Dialog object, which it displays as appropriate based on the fragment's state. Control of the dialog (deciding when to show, hide, dismiss it) should be done through the API here, not with direct calls on the dialog.
- Here is a nice discussion Android DialogFragment vs Dialog
- Another nice discussion DialogFragment advantages over AlertDialog
- 一个显示对话框窗口的片段，浮动在其活动窗口的顶部。该片段包含一个 Dialog 对象，它根据片段的状态适当显示。对话框的控制（决定何时显示、隐藏、关闭）应该通过这里的 API 来完成，而不是直接调用对话框。
- 这是一个很好的讨论 Android DialogFragment vs Dialog
- 另一个很好的讨论 DialogFragment 优于 AlertDialog
How to solve?
怎么解决？
More
更多的
回答by Matt Ball
From Activity#showDialog(int):
This method is deprecated.
Use the newDialogFragmentclass withFragmentManagerinstead; this is also available on older platforms through the Android compatibility package.
此方法已弃用。
使用新的DialogFragment类FragmentManager代替；这也可以通过 Android 兼容包在旧平台上使用。
回答by Khay
To display dialog box, you can use the following code. This is to display a simple AlertDialog box with multiple check boxes:
要显示对话框，可以使用以下代码。这是为了显示一个带有多个复选框的简单 AlertDialog 框：
AlertDialog.Builder alertDialog= new AlertDialog.Builder(MainActivity.this); .
alertDialog.setTitle("this is a dialog box ");
alertDialog.setPositiveButton("ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(),"ok ive wrote this 'ok' here" ,Toast.LENGTH_SHORT).show();
}
});
alertDialog.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(), "cancel ' comment same as ok'", Toast.LENGTH_SHORT).show();
}
});
alertDialog.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(), items[which] +(isChecked?"clicked'again i've wrrten this click'":"unchecked"),Toast.LENGTH_SHORT).show();
}
});
alertDialog.show();
Heading
标题
Whereas if you are using the showDialog function to display different dialog box or anything as per the arguments passed, you can create a self function and can call it under the onClickListener()function. Something like:
而如果您使用 showDialog 函数根据传递的参数显示不同的对话框或任何内容，则可以创建一个 self 函数并可以在该onClickListener()函数下调用它。就像是：
public CharSequence[] items={"google","Apple","Kaye"};
public boolean[] checkedItems=new boolean[items.length];
Button bt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt=(Button) findViewById(R.id.bt);
bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
display(0);
}
});
}
and add the code of dialog box given above in the function definition.
并在函数定义中添加上面给出的对话框代码。
回答by MishaLee
This code worked for me. Easy fix but probably not a preferred way.
这段代码对我有用。易于修复，但可能不是首选方式。
public void onClick (View v) {
createdDialog(0).show(); // Instead of showDialog(0);
}
protected Dialog createdDialog(int id) {
// Your code
}
回答by Keshav Gera
package com.keshav.datePicker_With_Hide_Future_Past_Date;
import android.app.DatePickerDialog;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.DatePicker;
import android.widget.EditText;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity {
EditText ed_date;
int year;
int month;
int day;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ed_date=(EditText) findViewById(R.id.et_date);
ed_date.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
Calendar mcurrentDate=Calendar.getInstance();
year=mcurrentDate.get(Calendar.YEAR);
month=mcurrentDate.get(Calendar.MONTH);
day=mcurrentDate.get(Calendar.DAY_OF_MONTH);
final DatePickerDialog mDatePicker =new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener()
{
@Override
public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday)
{
ed_date.setText(new StringBuilder().append(year).append("-").append(month+1).append("-").append(day));
int month_k=selectedmonth+1;
}
},year, month, day);
mDatePicker.setTitle("Please select date");
// TODO Hide Future Date Here
mDatePicker.getDatePicker().setMaxDate(System.currentTimeMillis());
// TODO Hide Past Date Here
// mDatePicker.getDatePicker().setMinDate(System.currentTimeMillis());
mDatePicker.show();
}
});
}
}
// Its Working
