自定义 DatePicker 只显示选择年月

package com.myapp.main; import android.app.Dialog; import android.content.Context; import android.graphics.Paint; import android.graphics.drawable.ColorDrawable; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.NumberPicker; import android.widget.TextView; import java.lang.reflect.Field; import java.util.Calendar; import java.util.TimeZone; /** * Created by John on 2017/3/21. * Description: Override Dialog */ public class MyDatePickerDialog extends Dialog implements NumberPicker.OnValueChangeListener, View.OnClickListener { private Context context; private OnSureListener onSureListener; private TextView tv_title_year, tv_title_month; private MyNumberPicker mnp_year, mnp_month; private Button btn_sure, btn_cancel; public MyDatePickerDialog(Context context){ super(context); this.context = context; } public interface OnSureListener{ void back(String name); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dialog_view); tv_title_year = (TextView) findViewById(R.id.tv_title_year); tv_title_month = (TextView) findViewById(R.id.tv_title_month); mnp_year = (MyNumberPicker) findViewById(R.id.mnp_year); mnp_month = (MyNumberPicker) findViewById(R.id.mnp_month); btn_sure = (Button) findViewById(R.id.btn_sure); btn_cancel = (Button) findViewById(R.id.btn_cancel); mnp_year.setOnValueChangedListener(this); mnp_month.setOnValueChangedListener(this); btn_sure.setOnClickListener(this); btn_cancel.setOnClickListener(this); Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("GMT + 08:00")); mnp_year.setMaxValue(2050); mnp_year.setMinValue(1900); mnp_year.setValue(calendar.get(Calendar.YEAR)); tv_title_year.setText(String.valueOf(calendar.get(Calendar.YEAR))); mnp_month.setMaxValue(12); mnp_month.setMinValue(1); mnp_month.setValue(calendar.get(Calendar.MONTH) + 1); tv_title_month.setText(String.valueOf(calendar.get(Calendar.MONTH) + 1)); // set NumberPicker font color and divider color setNumberPickerDividerColor(mnp_year, context.getResources().getColor(R.color.blue)); setNumberPickerTextColor(mnp_year, context.getResources().getColor(R.color.grey)); setNumberPickerDividerColor(mnp_month, context.getResources().getColor(R.color.blue)); setNumberPickerTextColor(mnp_month, context.getResources().getColor(R.color.grey)); // Prohibit rolling mnp_year.setWrapSelectorWheel(false); mnp_month.setWrapSelectorWheel(false); } public void setOnSureListener(OnSureListener onSureListener){ this.onSureListener = onSureListener; } @Override public void onClick(View v) { switch (v.getId()){ case R.id.btn_sure: onSureListener.back(String.valueOf(tv_title_year.getText().toString() + "-" + tv_title_month.getText().toString())); this.dismiss(); break; case R.id.btn_cancel: this.dismiss(); break; } } @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { switch (picker.getId()){ case R.id.mnp_year: tv_title_year.setText(String.valueOf(newVal)); break; case R.id.mnp_month: tv_title_month.setText(String.valueOf(newVal)); break; } } /** * set NumberPicker font color * * @param numberPicker：NumberPicker * @param color：int * @return boolean */ public static boolean setNumberPickerTextColor(NumberPicker numberPicker, int color) { final int count = numberPicker.getChildCount(); for (int i = 0; i < count; i++) { View child = numberPicker.getChildAt(i); if (child instanceof EditText) { Field selectorWheelPaintField; try { selectorWheelPaintField = numberPicker.getClass().getDeclaredField("mSelectorWheelPaint"); selectorWheelPaintField.setAccessible(true); try { ((Paint) selectorWheelPaintField.get(numberPicker)).setColor(color); } catch (IllegalAccessException e) { e.printStackTrace(); } ((EditText) child).setTextColor(color); numberPicker.invalidate(); return true; } catch (NoSuchFieldException e) { e.printStackTrace(); } } } return false; } /** * set NumberPicker divider color * * @param numberPicker：NumberPicker * @param color：int */ public static void setNumberPickerDividerColor(NumberPicker numberPicker, int color) { Field[] pickerFields = NumberPicker.class.getDeclaredFields(); for (Field SelectionDividerField : pickerFields) { if (SelectionDividerField.getName().equals("mSelectionDivider")) { SelectionDividerField.setAccessible(true); try { SelectionDividerField.set(numberPicker, new ColorDrawable(color)); } catch (IllegalAccessException e) { e.printStackTrace(); } break; } } } }