Android NumberPicker 使用

来源：互联网发布：mac baren烟丝购买编辑：程序博客网时间：2024/05/28 19:24

相关方法：

mNumberPickerLow.setMinValue(1);mNumberPickerLow.setMaxValue(20);mNumberPickerLow.setValue(15);

代码：

package shortcut.song.com.myapplication;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.NumberPicker;import android.widget.TextView;public class NumberPickerActivity extends AppCompatActivity {    private NumberPicker mNumberPickerLow;    private NumberPicker mNumberPickerHigh;    int miniPrice = 10;    int maxPrice = 100;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_number_picker);        mNumberPickerLow = (NumberPicker)findViewById(R.id.number_picker_low);        mNumberPickerHigh = (NumberPicker)findViewById(R.id.number_picker_high);        mNumberPickerLow.setMinValue(1);        mNumberPickerLow.setMaxValue(20);        mNumberPickerLow.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {            @Override            public void onValueChange(NumberPicker picker, int oldVal, int newVal) {                TextView mShowLow = (TextView)findViewById(R.id.tv_numberpicker_show_low);                mShowLow.setText("Low Price:"+newVal +"  "+oldVal);            }        });        mNumberPickerHigh.setMinValue(80);        mNumberPickerHigh.setMaxValue(100);        mNumberPickerHigh.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {            @Override            public void onValueChange(NumberPicker picker, int oldVal, int newVal) {                TextView mShowHigh = (TextView)findViewById(R.id.tv_numberpicker_show_high);                mShowHigh.setText("High Price:"+newVal +"  "+oldVal);            }        });    }}

xml布局：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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"    tools:context="shortcut.song.com.myapplication.NumberPickerActivity">    <TextView        android:id="@+id/tv_numberpicker_show_low"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        />    <NumberPicker        android:id="@+id/number_picker_low"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/tv_numberpicker_show_low"        android:focusable="true"        android:focusableInTouchMode="true"        />    <TextView        android:id="@+id/tv_numberpicker_show_high"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/number_picker_low"        />    <NumberPicker        android:id="@+id/number_picker_high"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/tv_numberpicker_show_high"        android:focusable="true"        android:focusableInTouchMode="true"        /></RelativeLayout>

运行效果：

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