我想说的话
今天晚上我依然在图书馆写博客,其实此刻我的没心激动而忐忑,因为明天就是足球赛的决赛,我作为主力球员压力很大,因对对方很强大,但是那又怎么样。so what。。。我不会停止写博客的
NumberPicker简介
NumberPicker这个控件可以让你滑动来选择数值。
通过三个方法来设置:
1.setMinValue()
2.setMaxVlaue()
3.setValue()
代码示例
<?xml version="1.0" encoding="utf-8"?><TableLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity" android:orientation="vertical" > <TableRow android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:layout_width="120dp" android:layout_height="wrap_content" android:text="选择低价"/> <NumberPicker android:id="@+id/np1" android:layout_width="match_parent" android:layout_height="80dp" android:focusable="true" android:focusableInTouchMode="true" /></TableRow> <TableRow android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:layout_width="120dp" android:layout_height="wrap_content" android:text="选择低价"/> <NumberPicker android:id="@+id/np2" android:layout_width="match_parent" android:layout_height="80dp" android:focusable="true" android:focusableInTouchMode="true"/> </TableRow></TableLayout>
package peng.liu.test;import android.app.Activity;import android.graphics.Color;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.CalendarView;import android.widget.DatePicker;import android.widget.EditText;import android.widget.FrameLayout;import android.widget.GridView;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.NumberPicker;import android.widget.SimpleAdapter;import android.widget.TextSwitcher;import android.widget.TextView;import android.widget.TimePicker;import android.widget.Toast;import android.widget.ViewFlipper;import android.widget.ViewSwitcher;import java.util.ArrayList;import java.util.Calendar;import java.util.HashMap;import java.util.List;import java.util.Map;public class MainActivity extends Activity { private NumberPicker np1,np2; private int minValue = 25; private int maxValue = 75; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); np1 = (NumberPicker) findViewById(R.id.np1); np2 = (NumberPicker) findViewById(R.id.np2); np1.setMinValue(10); np1.setMaxValue(50); np1.setValue(minValue); np2.setMinValue(50); np2.setMaxValue(100); np2.setValue(maxValue); np1.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker numberPicker, int i, int i2) { minValue = i2; showNumber(); } }); np2.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker numberPicker, int i, int i2) { maxValue = i2; showNumber(); } }); } public void showNumber(){ Toast.makeText(this,minValue+maxValue+"",Toast.LENGTH_LONG).show(); }}