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872天前private TextView customView; |
private int count=0; |
private boolean flag = false; |
private Handler handler=new Handler(){ |
@Override |
public void handleMessage(Message msg) { |
super.handleMessage(msg); |
if(msg.what==0){ |
customView.setText(mList.get(count)); |
customView.setBackgroundColor(Color.parseColor(mList.get(count))); |
if(count<mList.size()-1) |
count++; |
else |
count=0; |
handler.sendEmptyMessageDelayed(0,1000); |
} |
} |
}; |
private List<String> mList; |
@Override |
protected void onCreate(Bundle savedInstanceState) { |
super.onCreate(savedInstanceState); |
setContentView(R.layout.activity_main); |
Random random=new Random(); |
customView = (TextView) findViewById(R.id.customView); |
customView.setTextSize(30); |
//初始化数据 |
mList = new ArrayList<>(); |
/*mList.add("#6187c5"); |
mList.add("#FFFFFF"); |
mList.add("#BFBFBF"); |
mList.add("#6699FF"); |
mList.add("#FF9900"); |
mList.add("#CC0000");*/ |
for(int i=0;i<50;i++){ |
String chars = "abcdef"; |
char a=chars.charAt((int)(Math.random()*6)); |
char b=chars.charAt((int)(Math.random()*6)); |
int c=random.nextInt(10); |
int d=random.nextInt(10); |
int e=random.nextInt(10); |
int f=random.nextInt(10); |
String ss="#"+a+b+c+d+e+f; |
mList.add(ss); |
} |
customView.setText(mList.get(count)); |
customView.setBackgroundColor(Color.parseColor(mList.get(count))); |
handler.sendEmptyMessageDelayed(0,1000); |
flag=true; |
customView.setOnClickListener(new View.OnClickListener() { |
@Override |
public void onClick(View view) { |
if(flag){ |
flag=false; |
Toast.makeText(MainActivity.this, "关闭", Toast.LENGTH_SHORT).show(); |
handler.removeMessages(0); |
}else{ |
flag=true; |
Toast.makeText(MainActivity.this, "开启", Toast.LENGTH_SHORT).show(); |
handler.sendEmptyMessageDelayed(0,1000); |
} |
} |
}); |
} |
by: 发表于：2017-10-13 10:10:29 顶(0) | 踩(0) 回复
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