如何添加numberpicker值并在toast中显示 [英] How to add numberpicker values and display in toast

问题描述

我有两个号码选择器Numberpicker1和Numberpicker2

Numberpicker 1 => numberpicker1.setminvalue（1）和numberpicker1.setmaxvalue（7）

Numberpicker 2 => numberpicker2.setminvalue（0）和numberpicker2.setmaxvalue（12）





我的设计代码

I have two number pickers Numberpicker1 and Numberpicker2
Numberpicker 1 => numberpicker1.setminvalue(1) and numberpicker1.setmaxvalue(7)
Numberpicker 2 => numberpicker2.setminvalue(0) and numberpicker2.setmaxvalue(12)


My design code

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:id="@+id/layout1"
    >
    <NumberPicker
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/picker1"
        android:layout_marginRight="20dp"
        android:layout_marginEnd="20dp"></NumberPicker>


    <NumberPicker
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/picker2"
        ></NumberPicker>
</LinearLayout>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/layout1"
    android:text="SUBMIT"
    android:layout_centerInParent="true"
    android:layout_margin="10dp"
    />

我的主要活动代码

My Mainactivity Code

public class MainActivity extends AppCompatActivity {
NumberPicker pick1,pick2;
Button btnsubmit;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        pick1 = (NumberPicker)findViewById(R.id.picker1);
        pick2 = (NumberPicker)findViewById(R.id.picker2);

        pick1.setMinValue(1);
        pick1.setMaxValue(7);
        pick2.setMinValue(0);
        pick2.setMaxValue(12);

        btnsubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {
                try
                {

                }
                catch (Exception e)
                {
                    e.getMessage();
                }
            }
        });

    }
}

我的尝试：



输出未显示不幸停止的应用程序崩溃

请帮忙。甚至我的onclick按钮代码无法正常运行错误我是无法纠正。我没有太多关于编码的知识请更正我的代码并发送到这里

What I have tried:

The output is not showing displaying unfortunately stopped app gets crashed
pls help out.And even my onclick button code is not working error i am unable to rectify.i dont have much knowledge about coding pls correct my code and send here

推荐答案

为什么你转发这个问题？我昨天在 https://www.codeproject.com上给了你答案。 / Questions / 1258508 /如何添加两个数字选择器值 [ ^ ]

Why have you reposted this question? I gave you the answer yesterday at https://www.codeproject.com/Questions/1258508/How-to-add-two-number-picker-values[^]

这篇关于如何添加numberpicker值并在toast中显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！