使用Java实现霓虹灯效果

布局代码：

逻辑代码：

package com.example.lab.android.nuc.crizyandroid;

import android.annotation.SuppressLint;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import java.util.Timer;
import java.util.TimerTask;

public class LightActivity extends AppCompatActivity {


    private int currentColor = 0;
    //定义一个颜色数组
    final int [] colors = new int[]{
            R.color.color1,
            R.color.color2,
            R.color.color3,
            R.color.color4,
            R.color.color5,
            R.color.color6
    };
    final int[] names = new int[]{
            R.id.view1,
            R.id.view2,
            R.id.view3,
            R.id.view4,
            R.id.view5,
            R.id.view6
    };
    TextView[] views = new TextView[names.length];
    @SuppressLint("HandlerLeak")
    Handler handler = new Handler()
    {
        @Override
        public void handleMessage(Message msg) {

            if (msg.what == 0x123){
                for (int i = 0; i < names.length; i++) {
                    views[i].setBackgroundResource(colors[(i + currentColor) % names.length] );
                }
                currentColor ++;
            }
            super.handleMessage(msg);
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_light);
        for (int i = 0; i < names.length; i++) {
            views[i] = (TextView) findViewById(names[i]);
        }
        new Timer().schedule(new TimerTask() {
            @Override
            public void run() {
                handler.sendEmptyMessage(0x123);
            }
        },0,50);
    }
}

效果如下：

11.gif

时间比较紧，先写简洁一些吧