自定义倒计时以及不同字体大小的实现
public class TimeView extends
AppCompatTextView {
private static final String TAG = "TimeView";
private long hours;
private long minutes;
private long seconds;
private long diff;
private long days;
public TimeView(Context context) {
this(context, null);
}
public TimeView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TimeView);
diff = a.getInteger(R.styleable.TimeView_time, 0) * 1000;
onCreate();
}
/**
* 根据 attrs 设置时间开始
*/
private void onCreate() {
//start();
}
//开始计时
private void start() {
handler.removeMessages(1);
getTime();
Message message = handler.obtainMessage(1);
handler.sendMessageDelayed(message, 1000);
}
final Handler handler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) { // handle message
switch (msg.what) {
case 1:
setVisibility(View.VISIBLE);
diff = diff + 1000;
getShowTime();
if (diff > 0) {
Message message = handler.obtainMessage(1);
handler.sendMessageDelayed(message, 1000);
} else {
setVisibility(View.GONE);
}
break;
default:
break;
}
super.handleMessage(msg);
}
};
/**
* 得到时间差
*/
private void getTime() {
try {
days = diff / (1000 * 60 * 60 * 24);
hours = (diff - days * (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
minutes = (diff - days * (1000 * 60 * 60 * 24) - hours * (1000 * 60 * 60)) / (1000 * 60);
seconds = (diff - days * (1000 * 60 * 60 * 24) - hours * (1000 * 60 * 60) - minutes * (1000 * 60)) / (1000);
String tme = (days < 10 ? " " + days : days) + "天"
+ (hours < 10 ? "0" + hours : hours) + "时"
+ (minutes < 10 ? "0" + minutes : minutes) + "分"
+ (seconds < 10 ? "0" + seconds : seconds) + "秒";
SpannableString spanStr = new SpannableString(tme);
spanStr.setSpan(new RelativeSizeSpan(0.6f), 2, 3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE );
spanStr.setSpan(new RelativeSizeSpan(0.6f), 5, 6, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spanStr.setSpan(new RelativeSizeSpan(0.6f), 8, 9, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spanStr.setSpan(new RelativeSizeSpan(0.6f), 11, 12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
setText(spanStr);
} catch (Exception e) {
}
}
/**
* 获得要显示的时间
*/
private void getShowTime() {
days = diff / (1000 * 60 * 60 * 24);
hours = (diff - days * (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
minutes = (diff - days * (1000 * 60 * 60 * 24) - hours * (1000 * 60 * 60)) / (1000 * 60);
seconds = (diff - days * (1000 * 60 * 60 * 24) - hours * (1000 * 60 * 60) - minutes * (1000 * 60)) / (1000);
String tme = (days < 10 ? " " + days : days) + "天"
+ (hours < 10 ? "0" + hours : hours) + "时"
+ (minutes < 10 ? "0" + minutes : minutes) + "分"
+ (seconds < 10 ? "0" + seconds : seconds) + "秒";
SpannableString spanStr = new SpannableString(tme);
spanStr.setSpan(new RelativeSizeSpan(0.6f), 2, 3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE );
spanStr.setSpan(new RelativeSizeSpan(0.6f), 5, 6, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spanStr.setSpan(new RelativeSizeSpan(0.6f), 8, 9, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spanStr.setSpan(new RelativeSizeSpan(0.6f), 11, 12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
setText(spanStr);
}
public void setTime(long startTime) {
long localL = System.currentTimeMillis();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
String date1 = formatter.format(localL);
String date2 = formatter.format(startTime);
// 获取服务器返回的时间戳 转换成"yyyy-MM-dd HH:mm:ss"
// 计算的时间差
DateFormat df = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
try {
Date d1 = df.parse(date1);
Date d2 = df.parse(date2);
// 这样得到的差值是微秒级别
this.diff = d1.getTime() - d2.getTime();
} catch (ParseException pE) {
}
start();
}
}
效果
效果图.png