Android番外篇 如何从一个EditText跳转到另一个EditText

概述一、ActivitypublicclassActivityMainextendsActivity{ privateEditTextedt_hour; privateEditTextedt_minute; privateEditTextedt_second; TextWatchertw=newTextWatcher(){ //@Override publicvoidbeforeTextChanged(CharSequences,intst 一、Activity

public class ActivityMain extends Activity{	private EditText edt_hour;	private EditText edt_minute;	private EditText edt_second;		TextWatcher tw = new TextWatcher(){		//@OverrIDe		public voID beforeTextChanged(CharSequence s, int start, int count,int after){ 		}		//@OverrIDe		public voID onTextChanged(CharSequence s, int start, int before, int count){ 		}		//@OverrIDe		public voID afterTextChanged(Editable s){			if(s.toString().length() == 2){ 				if(edt_hour.isFocused()){ 					edt_hour.clearFocus();					edt_minute.requestFocus();				}				else if(edt_minute.isFocused()){ 					edt_minute.clearFocus(); 					edt_second.requestFocus();				}				else if(edt_second.isFocused()){ 					edt_second.clearFocus(); 				} 			}		}	};		public voID onCreate(Bundle savedInstanceState)  { 		super.onCreate(savedInstanceState);		setContentVIEw(R.layout.main);		edt_hour = (EditText) findVIEwByID(R.ID.hour);   		edt_hour.addTextChangedListener(tw); 		edt_minute = (EditText) findVIEwByID(R.ID.minute); 		edt_minute.addTextChangedListener(tw);		edt_second = (EditText) findVIEwByID(R.ID.second); 		edt_second.addTextChangedListener(tw);	}}

二、xml布局

<?xml version="1.0" enCoding="utf-8"?><linearLayout    xmlns:androID="http://schemas.androID.com/apk/res/androID"     androID:layout_wIDth="fill_parent"  androID:layout_height="fill_parent"     	  androID:orIEntation="vertical">     <EditText   	androID:ID="@+ID/hour"    	androID:text="00"   	androID:maxLength="2"	androID:inputType="number"     	androID:selectAllOnFocus="true"   	androID:layout_wIDth="fill_parent"   	androID:layout_height="wrap_content"/>  	  <EditText   	androID:ID="@+ID/minute"  	androID:text="00" 	androID:maxLength="2"  	androID:inputType="number"	androID:selectAllOnFocus="true" 	androID:layout_wIDth="fill_parent" 	androID:layout_height="wrap_content"/> 	  <EditText androID:maxLength="2"  	androID:inputType="number"  	androID:text="00"  	androID:ID="@+ID/second"  	androID:selectAllOnFocus="true"  	androID:layout_wIDth="fill_parent"  	androID:layout_height="wrap_content"/></linearLayout>

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