Parcelable接口的实现

怼烎@ 2022-08-18 02:10 195阅读 0赞

import android.os.Parcel;
    import android.os.Parcelable;
    
    public class UserInfo implements Parcelable {
    	private String username;
    	private String password;
    	
    	public UserInfo(String username, String password) {
    		super();
    		this.username = username;
    		this.password = password;
    	}
    
    	public String getUsername() {
    		return username;
    	}
    
    	public void setUsername(String username) {
    		this.username = username;
    	}
    
    	public String getPassword() {
    		return password;
    	}
    
    	public void setPassword(String password) {
    		this.password = password;
    	}
    	
    	
    	@Override
    	public int describeContents() {
    		// TODO Auto-generated method stub
    		return 0;
    	}
    
    	//实现Parcel接口必须覆盖实现的方法
    	@Override
    	public void writeToParcel(Parcel dest, int flags) {
    		// TODO Auto-generated method stub
    		/*
    		 * 将UserInfo对象的成员写入Parcel
    		 * 注：Parcel中的数据是按顺序写入和读取的，即先被写入的就会先被读取出来
    		 */
    		dest.writeString(username);
    		dest.writeString(password);
    	}
    	
    	//该静态域是必须要有的，而且名字必须是CREATOR，否则会出错
    	public static final Parcelable.Creator<UserInfo> CREATOR = 
    			new Parcelable.Creator<UserInfo>() {
    
    				@Override
    				public UserInfo createFromParcel(Parcel source) {
    					// TODO Auto-generated method stub
    					String username = source.readString();
    					String password = source.readString();
    					return new UserInfo(username, password);
    				}
    
    				@Override
    				public UserInfo[] newArray(int size) {
    					// TODO Auto-generated method stub
    					return new UserInfo[size];
    				}
    		
    			};
    
    }