android - 创建此类型的日期选择器

Question

http://developer.android.com/guide/topics/ui/controls/pickers.html

我想在 android 中创建这种类型的日期选择器。请给点提示。我没有到达那里。

Answer 1

在 Honeycomb 或更高版本中，您可以设置此类日期选择器。创建一个新的 Android 项目，目标为 Android 3.0。修改 main.xml 以添加 DatePicker：

<?xml version="1.0" encoding="UTF-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
   <TextView android:id="@+id/dateDisplay"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:paddingLeft="4dip"
       android:text="@string/hello"/>
      <Button android:id="@+id/pickDate"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:paddingLeft="4dip"
       android:text="@string/hello"/>    

DatePickerExample.java

  public class DatePickerExample extends Activity {
    private TextView mDateDisplay;
    private int mYear;
    private int mMonth;
    private int mDay;
    static final int DATE_DIALOG_ID = 1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.date_picker);
            mDateDisplay = (TextView) findViewById(R.id.dateDisplay);
            Button pickDate = (Button) findViewById(R.id.pickDate);
            pickDate.setOnClickListener(new View.OnClickListener() {
                    public void onClick(View v) {
                            showDialog(DATE_DIALOG_ID);
                    }
            });
            final Calendar c = Calendar.getInstance();
            mYear = c.get(Calendar.YEAR);
            mMonth = c.get(Calendar.MONTH);
            mDay = c.get(Calendar.DAY_OF_MONTH);
            updateDisplay();
    }
    @Override
    protected Dialog onCreateDialog(int id) {
            switch (id) {
            case DATE_DIALOG_ID:
                    return new DatePickerDialog(this,
                            mDateSetListener,
                            mYear, mMonth, mDay);
            }
            return null;
    }
    protected void onPrepareDialog(int id, Dialog dialog) {
            switch (id) {
            case DATE_DIALOG_ID:
                    ((DatePickerDialog) dialog).updateDate(mYear, mMonth, mDay);
                    break;
            }
    }   
    private void updateDisplay() {
            mDateDisplay.setText(
                    new StringBuilder()
                    // Month is 0 based so add 1
                    .append(mMonth + 1).append("-")
                    .append(mDay).append("-")
                    .append(mYear).append(" "));
    }
    private DatePickerDialog.OnDateSetListener mDateSetListener =
            new DatePickerDialog.OnDateSetListener() {
            public void onDateSet(DatePicker view, int year, int monthOfYear,
                            int dayOfMonth) {
                    mYear = year;
                    mMonth = monthOfYear;
                    mDay = dayOfMonth;
                    updateDisplay();
            }
    };}

Answer 2

您在问题中提供的链接已经有一个示例。如果你想要一个替代品试试这个。

public class pickerdate extends Activity {
/** Called when the activity is first created. */
  private TextView mDateDisplay;
    private Button mPickDate;
    private int mYear;
    private int mMonth;
    private int mDay;

    static final int DATE_DIALOG_ID = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);


        mDateDisplay = (TextView) findViewById(R.id.dateDisplay);
        mPickDate = (Button) findViewById(R.id.pickDate);


        mPickDate.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                showDialog(DATE_DIALOG_ID);
            }
        });


        final Calendar c = Calendar.getInstance();
        mYear = c.get(Calendar.YEAR);
        mMonth = c.get(Calendar.MONTH);
        mDay = c.get(Calendar.DAY_OF_MONTH);

        updateDisplay();
    }
    private void updateDisplay() {
        mDateDisplay.setText(
            new StringBuilder()
                    // Month is 0 based so add 1
                    .append(mMonth + 1).append("-")
                    .append(mDay).append("-")
                    .append(mYear).append(" "));
    }
    private DatePickerDialog.OnDateSetListener mDateSetListener =
        new DatePickerDialog.OnDateSetListener() {

            public void onDateSet(DatePicker view, int year, 
                                  int monthOfYear, int dayOfMonth) {
                mYear = year;
                mMonth = monthOfYear;
                mDay = dayOfMonth;
                updateDisplay();
            }
        };
        @Override
        protected Dialog onCreateDialog(int id) {
            switch (id) {
            case DATE_DIALOG_ID:
                return new DatePickerDialog(this,
                            mDateSetListener,
                            mYear, mMonth, mDay);
            }
            return null;
        }
  }

主.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView android:id="@+id/dateDisplay"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text=""/>
<Button android:id="@+id/pickDate"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Date Picker"/>