Android自定义view倒计时60秒
一个简单的自定义view。在里面封装了时间的倒计时，以及距离现在时间的时间计算
publicclassTimerTextViewextendsLinearLayout{
//时间变量
privatelongsecond;
privateTextViewtv_Time;
privateTextViewtv_Unit;
RefreshCallBackrefreshCallBack;
publicTimerTextView(Contextcontext,AttributeSetattrs,intdefStyleAttr){
super(context,attrs,defStyleAttr);
initView(context);
}
publicTimerTextView(Contextcontext,AttributeSetattrs){
super(context,attrs);
initView(context);
}
publicTimerTextView(Contextcontext){
super(context);
initView(context);
}
privatevoidinitView(Contextcontext){
//加载布局
LayoutInflater.from(context).inflate(R.layout.timer_text_view,this);
tv_Time=(TextView)findViewById(R.id.countdown_time);
tv_Unit=(TextView)findViewById(R.id.countdown_unit);
}
@Override
protectedvoidonDetachedFromWindow(){
super.onDetachedFromWindow();
//在控件被销毁时移除消息
handler.removeMessages(0);
}
privatebooleanisRun=true;//是否启动了
privateHandlerhandler=newHandler(Looper.getMainLooper()){
@Override
publicvoidhandleMessage(Messagemsg){
switch(msg.what){
case0:
if(isRun){
if(second>0){
second=second-1;
handler.sendEmptyMessageDelayed(0,1000);
}else{
if(null!=refreshCallBack){
refreshCallBack.refreshCallBack(true);
isRun=false;
}
}
}
break;
}
}
};
publicbooleanisRun(){
returnisRun;
}
/**
*开始计时
*/
publicvoidstart(){
isRun=true;
handler.removeMessages(0);
handler.sendEmptyMessage(0);
}
/**
*结束计时
*/
publicvoidstop(){
isRun=false;
}
publicvoiddiffTime(StringendTime){
SimpleDateFormatsdf=newSimpleDateFormat("yyyy-MM-ddHH:mm:ss",Locale.CHINA);
StringstartTime=sdf.format(newDate());
Stringformat="yyyy-MM-ddhh:mm:ss";
//按照传入的格式生成一个simpledateformate对象
SimpleDateFormatsd=newSimpleDateFormat(format);
longnd=1000*24*60*60;//一天的毫秒数
longnh=1000*60*60;//一小时的毫秒数
longnm=1000*60;//一分钟的毫秒数
longns=1000;//一秒钟的毫秒数longdiff;try{
//获得两个时间的毫秒时间差异
longdiff=0;
try{
diff=sd.parse(endTime).getTime()-sd.parse(startTime).getTime();
}catch(ParseExceptione){
e.printStackTrace();
}
if(diff<0){
if(null!=refreshCallBack){
refreshCallBack.showCallBack(false);
}
return;
}else{
if(null!=refreshCallBack){
refreshCallBack.showCallBack(true);
}
longday=diff/nd;//计算差多少天
if(day>0){
tv_Time.setText(String.valueOf(day));
tv_Unit.setText("天");
}else{
longhour=diff%nd/nh;//计算差多少小时
if(hour>0){
tv_Time.setText(String.valueOf(hour));
tv_Unit.setText("小时");
}else{
longmin=diff%nd%nh/nm;//计算差多少分钟
if(min>0){
tv_Time.setText(String.valueOf(min));
tv_Unit.setText("分钟");
}else{
second=diff%nd%nh%nm/ns;//计算差多少秒//输出结果
//if(min>0){
//stringBuffer.append(sec+"秒");
//}
handler.removeMessages(0);
handler.sendEmptyMessage(0);
tv_Unit.setText("即将开始");
tv_Time.setVisibility(GONE);
}
}
}
}
}
publicvoidsetTextViewSize(intsize){
if(null!=tv_Time){
tv_Time.setTextSize(size);
}
if(null!=tv_Unit){
tv_Unit.setTextSize(size);
}
}
publicvoidsetTextViewSpace(Stringtype){
if("Big".equals(type)){
LinearLayout.LayoutParamslp2=(LayoutParams)tv_Time.getLayoutParams();
lp2.setMargins(0,0,DensityUtil.dip2px(tv_Time.getContext(),12),0);
tv_Time.setLayoutParams(lp2);
tv_Time.setBackground(getResources().getDrawable(R.drawable.bg_video_count_down));
}elseif("Middle".equals(type)){
tv_Time.setPadding(12,0,12,0);
LinearLayout.LayoutParamslp2=(LayoutParams)tv_Time.getLayoutParams();
lp2.setMargins(0,0,12,0);
tv_Time.setLayoutParams(lp2);
}else{
tv_Time.setPadding(8,0,8,0);
LinearLayout.LayoutParamslp2=(LayoutParams)tv_Time.getLayoutParams();
lp2.setMargins(0,0,8,0);
tv_Time.setLayoutParams(lp2);
}
}
publicvoidsetRefreshCallBack(RefreshCallBackrefreshCallBack){
this.refreshCallBack=refreshCallBack;
}
publicinterfaceRefreshCallBack{
publicvoidrefreshCallBack(booleanflag);
publicvoidshowCallBack(booleanflag);
}
}
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