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andori 动画验证必填项

  1. android项目开发过程中,都会碰到必填项的校验,最简单的就是利用Toast对用进行提示,感觉这种提示太不够人性化了,那么今天就来个带动画的,并可以将光标定位到必填项中。
  2. andorid动画Animation,当用户输入不合法时将对用的控件进行动画显示,方便用户更好的定位到相应位置。

相关源码:

 

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.EditText;


public class BaseActivitys extends Activity
{
    private Animation shakeAction;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        this.shakeAction = new TranslateAnimation(-3,3,0,0);//设置动画左右跳动
        this.shakeAction.setDuration(100);
        this.shakeAction.setRepeatCount(5);//动画执行5次
    }
    protected void setRequired(View view,String... error){
        view.startAnimation(shakeAction);
        view.setFocusable(true);
        view.requestFocus();//设置光标为选择状态
        view.setFocusableInTouchMode(true);
        if(view instanceof EditText){
            ((EditText) view).setError(error[0]);
        }
    }
    
}

 

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;


public class MainAct extends BaseActivitys
{
    private EditText requreEdit = null;
    private Button requreBtn = null;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main2);
        requreEdit = (EditText)this.findViewById(R.id.requreEditText);
        requreBtn = (Button)this.findViewById(R.id.requreBtn);
        requreBtn.setOnClickListener(new View.OnClickListener()
        {
            
            public void onClick(View view)
            {
                if(valid())
                {
                    Log.e("ddd","不为空");
                }
            }
        });
    }
    private boolean valid()
    {
        String requreStr = this.requreEdit.getText().toString();
        if(requreStr.equals(""))
        {
            this.setRequired(this.requreEdit, "请填写备注");
            return false;
        }
        return true;
    }
}

 

 

posted on 2013-07-05 21:44  Keep Running  阅读(722)  评论(0编辑  收藏  举报