android之EditText自动完成

输入对话框主要有

TextView：普通的文本框

AutoCompleteTextView：自动完成，输入匹配字符后下面出现提示

MultiAutoCompleteTextView：可以输完一个，继续输入还可以提示

Spinner：下拉列表

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android">
<EditText android:text="EditText" android:id="@+id/editText1" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText>

<AutoCompleteTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/autoCompleteTextView1" ></AutoCompleteTextView>

<MultiAutoCompleteTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/multiAutoCompleteTextView1"></MultiAutoCompleteTextView>

<Spinner android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/spinner1"></Spinner>


</LinearLayout>

数组资源：arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="Country">
<item>china</item>
<item>china1</item>
<item>china2</item>
<item>Hongkong</item>
<item>Japan</item>
<item>USA</item>
<item>xiaotech</item>
</string-array>
</resources>

应用程序文件

package xiao.jun;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.content.Intent;
import android.widget.*;

public class xiaotech extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.main);

//创建一个数组，数据从arrays.xml读取
ArrayAdapter<CharSequence> arrayadapter=ArrayAdapter.createFromResource(this, R.array.Country, android.R.layout.simple_dropdown_item_1line);

AutoCompleteTextView t1=(AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
t1.setAdapter(arrayadapter);

MultiAutoCompleteTextView t2=(MultiAutoCompleteTextView)findViewById(R.id.multiAutoCompleteTextView1);
t2.setAdapter(arrayadapter);
t2.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());

Spinner s=(Spinner)findViewById(R.id.spinner1);
s.setAdapter(arrayadapter);

}

}

效果图：

设置edittext密码显示：

EditText.setTransformationMethod(PasswordTransformationMethod.getInstance()); //密码显示

EditText.setTransformationMethod(HideReturnsTransformationMethod.getInstance()); //明文显示