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如何將動態創建的EditText和Spinner放在一個LinearLayout中？

[英]How to put a dynamically created EditText and a Spinner in one LinearLayout?

 原文  2018-05-24 06:52:09  5   2    android

問題描述

我正在制作一個自動化應用程序。 用戶可以選擇添加設備的位置。 默認情況下，此表單中第一台設備有1個編輯文本和1個微調器，然后用戶可以通過單擊按鈕來添加更多設備。 單擊后將創建新的Edittext和微調框。 它現在可以完美地創建，但是我希望其他設備選項如鏡像中所示的第一個第一設備- 創建設備表單 

public class CreateAppliance extends AppCompatActivity {

int i = 1;
EditText editText;
Spinner spinner;
List<EditText> ed;
List<Spinner> sp;
String[] arraySpinner;
String room;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_create_appliance);

    final LinearLayout textLayout = (LinearLayout) findViewById(R.id.textLayout);
    Button btnAddAppliance = (Button) findViewById(R.id.btnAddAppliance);
    Button btnCreateAppliance = (Button) findViewById(R.id.btnCreateAppliance);
    final EditText txtAppliance = (EditText) findViewById(R.id.r1);
    Spinner spnAppliance = (Spinner) findViewById(R.id.spnAppliance);
    arraySpinner = new String[]{"ON/OFF", "Dimmer"};
    ed = new ArrayList<EditText>();
    sp = new ArrayList<Spinner>();

    final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, arraySpinner);
    spnAppliance.setAdapter(adapter);

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

            i += 1;
            editText = new EditText(CreateAppliance.this);
            spinner = new Spinner(CreateAppliance.this);
            editText.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            spinner.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            editText.setHint("Appliance" + i);
            spinner.setAdapter(adapter);
            editText.setInputType(InputType.TYPE_CLASS_TEXT);
            textLayout.addView(editText);
            textLayout.addView(spinner);
            ed.add(editText);
            sp.add(spinner);
        }
    });
}
}

activity_create_appliance.xml 

  <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".CreateAppliance">

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_marginTop="20dp"
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

        <EditText
            android:id="@+id/r1"
            android:textColor="@color/black"
            android:inputType="text"
            android:layout_weight="1"
            android:hint="Appliance 1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"/>

            <Spinner
                android:id="@+id/spnAppliance"
                android:layout_weight="2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">
            </Spinner>

        </LinearLayout>



        <LinearLayout
            android:id="@+id/textLayout"
            android:orientation="vertical"
            android:layout_margin="10dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

        </LinearLayout>

        <Button
            android:id="@+id/btnAddAppliance"
            android:text="Add Appliance"
            android:background="@drawable/button_rounded"
            android:backgroundTint="@color/light_blue_900"
            android:textColor="@color/white"
            android:paddingRight="40dp"
            android:paddingLeft="40dp"
            android:drawableRight="@drawable/plus"
            android:layout_gravity="right"
            android:layout_margin="10dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />


        <Button
            android:id="@+id/btnCreateAppliance"
            android:text="Create Appliance"
            android:layout_gravity="center"
            android:background="@drawable/button_rounded"
            android:backgroundTint="@color/light_blue_900"
            android:textColor="@color/white"
            android:paddingLeft="40dp"
            android:paddingRight="40dp"
            android:layout_marginBottom="10dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>
 </ScrollView>
 </android.support.constraint.ConstraintLayout>

我想要與此動態創建的edtitext和spinner

2 個解決方案

解決方案1
 0  2018-05-24 06:59:10

首先創建一個edittext或spinner layout.xml 

<?xml version="1.0" encoding="utf-8"?>
<EditText xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/item"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

</EditText>

然后將其充氣到要動態放置的位置 

    btnAddAppliance.onclick{

        RelativeLayout parent = (RelativeLayout)findViewById(R.id.parent);
        View child = getLayoutInflater().inflate(R.layout.item, null);
        parent.addView(child);
}

您還可以看到鏈接

解決方案2
 0 已采納  2018-05-24 08:20:59

試試這個，它將按照您的要求工作

首先，我對您的activity_create_appliance.xml進行了一些更改。 請仔細查看。 設置背景作為您的要求。 我刪除了 現在更新的XML文件如下。 

<android.support.constraint.ConstraintLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/parentConstraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<ScrollView
    android:layout_width="368dp"
    android:layout_height="wrap_content"
    tools:layout_editor_absoluteY="0dp"
    tools:layout_editor_absoluteX="8dp">

    <LinearLayout
        android:id="@+id/textLayout"
        android:orientation="vertical"
        android:layout_margin="10dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    </LinearLayout>

</ScrollView>

<LinearLayout
    android:layout_width="368dp"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintBottom_toBottomOf="parent"
    tools:layout_editor_absoluteX="8dp">

    <Button
        android:id="@+id/btnAddAppliance"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right"
        android:layout_margin="10dp"
        android:paddingLeft="40dp"
        android:paddingRight="40dp"
        android:text="Add Appliance"
        android:textColor="@color/white" />


    <Button
        android:id="@+id/btnCreateAppliance"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="10dp"
        android:paddingLeft="40dp"
        android:paddingRight="40dp"
        android:text="Create Appliance"
        android:textColor="@color/white" />

</LinearLayout>

</android.support.constraint.ConstraintLayout>

現在執行點擊的主要邏輯在這里 

    final LinearLayout textLayout = (LinearLayout) findViewById(R.id.textLayout);

    Button btnAddAppliance = (Button) findViewById(R.id.btnAddAppliance);

    final ArrayList<LinearLayout> linearLayoutArrayList = new ArrayList<>();

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

            LinearLayout linearLayout = new LinearLayout(CreateAppliance.this);

            LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);

            linearLayout.setLayoutParams(linearLayoutParams);
            linearLayout.setId(View.generateViewId());

            linearLayout.setOrientation(LinearLayout.HORIZONTAL);
            linearLayout.setWeightSum(3);

            EditText editText = new EditText(CreateAppliance.this);

            LinearLayout.LayoutParams editTextLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1f);

            editText.setLayoutParams(editTextLayoutParams);
            editText.setMaxLines(1);
            editText.setId(View.generateViewId());

            linearLayout.addView(editText);

            Spinner spinner = new Spinner(CreateAppliance.this);

            LinearLayout.LayoutParams spinnerLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 2f);

            spinner.setLayoutParams(spinnerLayoutParams);
            spinner.setId(View.generateViewId());

            String[] arraySpinner = new String[] {
                    "ON", "OFF"
            };

            ArrayAdapter<String> adapter = new ArrayAdapter<String>(CreateAppliance.this,
                    android.R.layout.simple_spinner_item, arraySpinner);

            spinner.setAdapter(adapter);

            linearLayout.addView(spinner);

            linearLayoutArrayList.add(linearLayout);

            textLayout.addView(linearLayout);
        }
    });

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