Question

所以我真的很新的android编程（和java）和我试图做基本的东西。我跟着互联网上的教程但我不能设法做我想要的。我有旋转器与edittext和一个按钮。当我单击按钮，我希望微调器中的选定项目和edittext中的数字进入另一个textview（加载一个带有大文本视图的新页面）。到目前为止，我做到了这一点：（Mainactivity.java）

package com.example.spinnertest;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;



public class MainActivity extends Activity {


    Spinner s1,s2,s3,s4;
    TextView txt2;
    Button button1;

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

        s1 = (Spinner) findViewById(R.id.spinner1);
        s2= (Spinner)  findViewById(R.id.spinner2);
        s3 = (Spinner) findViewById(R.id.spinner3);
        txt2 = (TextView) findViewById(R.id.textView2);
        /////////CODE PART FOR TESTING ONLY,NO LINK WITH MY QUESTION/////
        s1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                String val = s1.getSelectedItem().toString();
                txt2.setText(val);
            }

            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {

            }
        });

        s3.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                String val = s3.getSelectedItem().toString();
                txt2.setText(val);
            }

            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {

            }
        });
        s2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                String val = s2.getSelectedItem().toString();
                txt2.setText(val);
            }
            //////////////////END OF TESTING CODE PART///////////
            // OnClickListener of Button
            button.setOnClickListener(new OnClickListener() {      ///theres few errors here?

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub

                    // Getting values of text and spinners
                    //selectedDay = daySpinner.getSelectedItem().toString();  //this code doesnt fit the way I define my spinners;see below
                    //selectedMonth = monthSpinner.getSelectedItem().toString();   //this code doesnt fit the way I define my spinners;see below
                    //text = editText.getText().toString();   //this code doesnt fit the way I define my spinners;see below

                    // Creating an Intent to open new Activity(Screen) and sending
                    // the details
                    Intent intent = new Intent(MainActivity.this, Affichage.class);
                   // intent.putExtra("day", selectedDay);//this code doesnt fit the way I define my spinners;see below
                    //intent.putExtra("month", selectedMonth);//this code doesnt fit the way I define my spinners;see below
                    //intent.putExtra("text", text);   //this code doesnt fit the way I define my spinners;see below
                    startActivity(intent);

                }
            });

            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {

        }
        }
        };}}

seconde java文件活动：

package com.example.spinnertest;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.Spinner;
import android.widget.TextView;

public class Display extends ActionBarActivity {

TextView textView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    Spinner s1;
    setContentView(R.layout.activity_display);

    textView = (TextView) findViewById(R.id.disp);
    s1 = (Spinner) findViewById(R.id.spinner1);



    Intent intent = getIntent();
    if(intent!=null)
    {
        String val = s1.getSelectedItem().toString();
        textView.setText(val);
        //String month = intent.getStringExtra("month");  //example from the internet;doesnt fit my code
        //String text = intent.getStringExtra("text"); //example from the internet,doesnt fit my code



    }
    else
    {
        textView.setText("Intent is null");
    }
}}

使用textview的第二页布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:orientation="vertical" >

<TextView
    android:id="@+id/afficher"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

</LinearLayout>

布局是我的微调器和东西定义：

    <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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.spinnertest.MainActivity" >

    <Spinner
        android:id="@+id/spinner6"
        android:layout_width="130dp"
        android:layout_height="35dp"
        android:layout_alignLeft="@+id/spinner5"
        android:layout_alignTop="@+id/editText3"
        android:entries="@array/Type" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView2"
        android:layout_alignParentLeft="true"
        android:text="Description de la recette de fabrication"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView1"
        android:layout_alignParentBottom="true"
        android:text="TextView" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:text="Fabriquer" />

    <Spinner
        android:id="@+id/spinner3"
        android:layout_width="130dp"
        android:layout_height="35dp"
        android:layout_above="@+id/button1"
        android:layout_alignLeft="@+id/spinner2"
        android:entries="@array/spin1" />

    <EditText
        android:id="@+id/editText3"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/spinner3"
        android:layout_toRightOf="@+id/spinner3"
        android:ems="10"
        android:inputType="number" />

    <Spinner
        android:id="@+id/spinner2"
        android:layout_width="130dp"
        android:layout_height="35dp"
        android:layout_alignLeft="@+id/spinner1"
        android:layout_below="@+id/spinner4"
        android:entries="@array/spin1" />

    <Spinner
        android:id="@+id/spinner1"
        android:layout_width="130dp"
        android:layout_height="35dp"
        android:layout_above="@+id/editText6"
        android:layout_alignLeft="@+id/textView1"
        android:layout_marginBottom="29dp"
        android:entries="@array/spin1" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:layout_above="@+id/spinner3"
        android:layout_toRightOf="@+id/spinner3"
        android:ems="10"
        android:inputType="number" />

    <EditText
        android:id="@+id/editText6"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editText4"
        android:layout_alignTop="@+id/spinner6"
        android:ems="10"
        android:inputType="number" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/editText2"
        android:layout_alignTop="@+id/spinner1"
        android:ems="10"
        android:inputType="number" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/editText5"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:layout_above="@+id/spinner6"
        android:layout_alignParentRight="true"
        android:layout_marginRight="18dp"
        android:ems="10"
        android:inputType="number" />

    <Spinner
        android:id="@+id/spinner5"
        android:layout_width="130dp"
        android:layout_height="35dp"
        android:layout_alignTop="@+id/editText5"
        android:layout_toLeftOf="@+id/editText6"
        android:entries="@array/Type" />

    <EditText
        android:id="@+id/editText4"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editText5"
        android:layout_alignTop="@+id/spinner4"
        android:ems="10"
        android:inputType="number" />

    <Spinner
        android:id="@+id/spinner4"
        android:layout_width="130dp"
        android:layout_height="35dp"
        android:layout_above="@+id/spinner5"
        android:layout_toRightOf="@+id/button1"
        android:entries="@array/Type" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/spinner1"
        android:layout_alignParentTop="true"
        android:text="Production en cours:"
        android:textAppearance="?android:attr/textAppearanceSmall" />

    <Spinner
        android:id="@+id/spinner7"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_alignBottom="@+id/textView3"
        android:layout_alignLeft="@+id/editText1"
        android:layout_marginLeft="22dp"
        android:entries="@array/Production" />

    <EditText
        android:id="@+id/editText7"
        android:layout_width="50dp"
        android:layout_height="25dp"
        android:layout_above="@+id/editText1"
        android:layout_toRightOf="@+id/spinner4"
        android:ems="10"
        android:inputType="number" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/spinner7"
        android:layout_toRightOf="@+id/button1"
        android:text="Quantité produite:"
        android:textAppearance="?android:attr/textAppearanceSmall" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_toRightOf="@+id/textView2"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView5"
        android:layout_alignBottom="@+id/textView5"
        android:layout_toRightOf="@+id/textView5"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView6"
        android:layout_alignBottom="@+id/textView6"
        android:layout_toRightOf="@+id/editText3"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView8"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView7"
        android:layout_alignBottom="@+id/textView7"
        android:layout_toRightOf="@+id/textView7"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView9"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/spinner4"
        android:layout_below="@+id/textView1"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView10"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView9"
        android:layout_alignBottom="@+id/textView9"
        android:layout_toRightOf="@+id/textView9"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView11"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView10"
        android:layout_alignBottom="@+id/textView10"
        android:layout_toRightOf="@+id/textView10"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView12"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView2"
        android:layout_alignParentBottom="true"
        android:text="TextView" />

</RelativeLayout>

我的微调器的内容在array.xml中定义（在值中），如下所示：

<resources>
<array name="spin1">
<item>item1</item>
<item>item2</item>
<item>item3</item>
</array> 

<array name="Type">
<item> A</item>
<item> B</item>
<item>c</item>
<item>d</item>
</array> 

<array name="Production">
<item>motorbike</item>
</array> 
</resources>

所以我希望我的微调器+ edittext的所选项目在新页面上的文本视图中进行，我不知道该怎么做，但我认为我有一个好的开始？

谢谢

Answer 1

您可以使用myIntent.setExtra（＆＃34;数据＆＃34;，数据）通过意图发送数据;如上所述。当你想要的只是最终值时，为什么要定义你的微调器来听每一个变化？你可以使用mySpinner.getSelectedItem（）。toString（）;代替。你能详细说明一下我的代码不合适吗？（我会评论这个，但我不会有50个代表）

spinner + edittext的内容到另一个页面（textview）（android）

1 个答案: