Android開發之EditText組件

輸入特定字符

效果圖：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"

android:layout_width="wrap_content"

android:layout_height="fill_parent"

android:orientation="vertical" >

<TableLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:stretchColumns="1" >

<TableRow >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:text="@string/user" />

<EditText

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

</TableRow>

<TableRow >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:text="@string/pass" />

<EditText

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:inputType="textPassword" />

</TableRow>

<TableRow >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/twopass" />

<EditText

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:inputType="textPassword" />

</TableRow>

<TableRow >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/email" />

<EditText

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:inputType="textEmailAddress" />

</TableRow>

<TableRow >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:text="@string/authcode" />

<TableLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content" >

<TableRow >

<EditText

android:layout_width="80dp"

android:layout_height="wrap_content" />

<ImageView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/p2" />

<TextView

android:id="@+id/changeId"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/change" />

</TableRow>

</TableLayout>

</TableRow>

<TableRow >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

<CheckBox

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:text="@string/text"

android:id="@+id/textId"

/>

</TableRow>

</TableLayout>

<RelativeLayout

android:layout_width="match_parent"

android:layout_height="match_parent" >

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:text="提交注冊" />

</RelativeLayout>

</LinearLayout>

////////////////strings.xml//////////////////////

<?xml version="1.0" encoding="utf-8"?>

<resources>

<string name="hello">Hello World, ZhuCeActivity!</string>

<string name="app_name">ZhuCe</string>

<string name="user">用戶名：</string>

<string name="pass">密碼：</string>

<string name="twopass">確認密碼：</string>

<string name="email">電子郵箱：</string>

<string name="authcode">驗證碼：</string>

<string name="change">看不清？<a href="#">換一個</a></string>

<string name="text">我已經閱讀並同意協議</string>

</resources>

自動完成輸入內容的組件

package cn.class3g.activity;

import android.app.Activity;

import android.os.Bundle;

import android.widget.ArrayAdapter;

import android.widget.AutoCompleteTextView;

import android.widget.MultiAutoCompleteTextView;

public class AutoActivity extends Activity{

AutoCompleteTextView auto = null;

MultiAutoCompleteTextView mauto = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

findViews();

String[] str = {"abc","add","aas","afr","bdr","ber","bsd"};

ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line,str);

auto.setAdapter(adapter);

//----------------------

mauto.setAdapter(adapter);

mauto.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());

}

private void findViews(){

auto = (AutoCompleteTextView) this.findViewById(R.id.autoId);

mauto = (MultiAutoCompleteTextView) this.findViewById(R.id.mautoId);

}

}

EditText中回車鍵的使用

為EditText對象的注冊OnKeyListener事件，實現onKey（）方法

package cn.class3g.activity;

import android.app.Activity;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.View;

import android.view.View.OnKeyListener;

import android.widget.Button;

import android.widget.EditText;

public class EditTextTest1Activity extends Activity implements OnKeyListener{

/** Called when the activity is first created. */

Button but = null;

EditText et = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.onkey);

findView();

}

public void findView(){

but = (Button) this.findViewById(R.id.buttonId);

et = (EditText) this.findViewById(R.id.edit);

et.setOnKeyListener(this);

}

@Override

public boolean onKey(View v, int keyCode, KeyEvent event) {

// TODO Auto-generated method stub

if(keyCode==KeyEvent.KEYCODE_ENTER){

but.setText(et.getText());

et.setVisibility(View.GONE);

but.setVisibility(View.VISIBLE);

}

return false;

}

}