从微调选择项显示的EditText

本文介绍了从微调选择项显示的EditText的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想如果选择从微调某一个项目，显示一个EditText。到目前为止，我已经创造了微调和EditText上，但我真的不知道我的下一步是什么。我不想以显示的EditText的选择，我只是想显示的EditText领域。

@覆盖公共无效的onCreate（捆绑savedInstanceState）{    super.onCreate（savedInstanceState）;    的setContentView（R.layout.activity_main）;    最终的EditText EDITTEXT =（EditText上）findViewById（R.id.edit_text_box）;    editText.getText（）的toString（）。}公共无效addItemsOnSpinner（）{    spinner1 =（微调）findViewById（R.id.spinner）;    ArrayAdapter＆LT;＆CharSequence的GT;适配器= ArrayAdapter.createFromResource    （这一点，R.array.spinner_item，android.R.layout.simple_spinner_item）;    adapter.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;    spinner1.setAdapter（适配器）;}公共无效onItemSelected（适配器视图＆LT;＆GT; spinner1，观景，INT POS，长I​​D）{        editText.setText（spinner1.getSelectedItem（））;}

这也是我在我的字符串数组+只希望被选中时ITEM2显示的EditText框

＆LT;字符串数组名=spinner_item＆GT;    ＆LT;项目＆GT;项目1 LT; /项目＆GT;    ＆LT;项目值=项目2＆GT;项目2'; /项目＆GT;    ＆LT;项目＆GT;项目3'; /项目＆GT;    ＆LT;项目＆GT;项目4℃; /项目＆GT;＆LT; /字符串数组＆GT;

解决方案

您应该设置EDITTEXT的知名度，无形或XML消失了，depands什么适合您的需求更好。那么您可以使用下面使其出现：

公共无效onItemSelected（适配器视图＆LT;＆GT; spinner1，观景，诠释POS，长I​​D）{ yourEditText.setVisibility（View.VISIBLE）;}

I am trying to show an EditText when a certain Item from a Spinner is selected. So far I have created the spinner and the EditText but I don't really know what my next step is. I don't want to display the selection in the EditText, I just want to display the EditText field.

@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final EditText editText = (EditText) findViewById(R.id.edit_text_box); editText.getText().toString(); } public void addItemsOnSpinner() { spinner1 = (Spinner) findViewById(R.id.spinner); ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource (this, R.array.spinner_item, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner1.setAdapter (adapter); } public void onItemSelected(AdapterView<?> spinner1, View view,int pos, long id) { editText.setText(spinner1.getSelectedItem()); }

This is also what I have in my string array + wish to only display the edittext box when item2 is selected

<string-array name="spinner_item"> <item>Item 1</item> <item value="Item2">Item 2</item> <item>Item 3</item> <item>Item 4</item> </string-array>

解决方案

You should set visibility of editText to invisible or gone in XML, depands on what suits your needs better. then you can use following to make it appear :

public void onItemSelected(AdapterView<?> spinner1, View view,int pos, long id) { yourEditText.setVisibility(View.VISIBLE); }