Android中自定义View仿京东秒杀倒计时
16lz
2021-01-23
Android中自定义View仿京东秒杀倒计时
效果图
1.创建View：
<?xml version="1.0" encoding="utf-8"?>"http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:padding="@dimen/j2dp"> "@+id/lay_days" android:layout_width="wrap_content" android:layout_height="match_parent" android:orientation="horizontal" android:gravity="center"> "wrap_content" android:layout_height="wrap_content" android:background="@drawable/goodsdetail_timer_bg" android:gravity="center" android:paddingLeft="3dp" android:paddingRight="3dp"> "@+id/tv_days_decade" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "@+id/tv_days_unit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "wrap_content" android:layout_height="match_parent" android:gravity="center" android:text="天" android:textSize="@dimen/j12dp" android:textColor="@color/white"/> "@+id/lay_hour" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/goodsdetail_timer_bg" android:gravity="center" android:paddingLeft="3dp" android:paddingRight="3dp"> "@+id/tv_hour_decade" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "@+id/tv_hour_unit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "wrap_content" android:layout_height="match_parent" android:layout_marginLeft="@dimen/j3dp" android:layout_marginRight="@dimen/j3dp" android:gravity="center" android:text=":" android:textColor="@color/white" android:textSize="@dimen/j18dp"/> "@+id/lay_min" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/goodsdetail_timer_bg" android:gravity="center" android:paddingLeft="3dp" android:paddingRight="3dp"> "@+id/tv_min_decade" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "@+id/tv_min_unit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "wrap_content" android:layout_height="match_parent" android:layout_marginLeft="@dimen/j3dp" android:layout_marginRight="@dimen/j3dp" android:gravity="center" android:text=":" android:textColor="@color/white" android:textSize="@dimen/j18dp"/> "@+id/lay_s" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/goodsdetail_timer_bg" android:gravity="center" android:paddingLeft="3dp" android:paddingRight="3dp"> "@+id/tv_sec_decade" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> "@+id/tv_sec_unit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:textColor="@color/text_10" android:textSize="@dimen/j18dp" android:textStyle="bold" /> goodsdetail_timer_bg.xml
<?xml version="1.0" encoding="utf-8"?>"http://schemas.android.com/apk/res/android" > "@color/white" /> "1dp" /> "2dp" android:color="#ffffff" /> 2.重写View：
@SuppressLint("HandlerLeak")public class GoodsDetailTimerView extends LinearLayout { // 天数，十位 private TextView tv_days_decade; // 天数，个位 private TextView tv_days_unit; // 小时，十位 private TextView tv_hour_decade; // 小时，个位 private TextView tv_hour_unit; // 分钟，十位 private TextView tv_min_decade; // 分钟，个位 private TextView tv_min_unit; // 秒，十位 private TextView tv_sec_decade; // 秒，个位 private TextView tv_sec_unit; //布局：时 ，分，秒 private LinearLayout layHour, layMin, layS, layDays; private Context context; private int day; private int days_decade; private int days_unit; private int hour_decade; private int hour_unit; private int min_decade; private int min_unit; private int sec_decade; private int sec_unit; // 计时器 private Timer timer; private Handler handler = new Handler() { public void handleMessage(Message msg) { countDown(); } }; // 回调接口 public interface OnTimeOutCallBack { void onCallBack(); } private OnTimeOutCallBack callBack; public GoodsDetailTimerView(Context context, AttributeSet attrs) { super(context, attrs); this.context = context; LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View view = inflater.inflate(R.layout.view_goodsdetailtimer, this); tv_days_decade = (TextView) view.findViewById(R.id.tv_days_decade); tv_days_unit = (TextView) view.findViewById(R.id.tv_days_unit); tv_hour_decade = (TextView) view.findViewById(R.id.tv_hour_decade); tv_hour_unit = (TextView) view.findViewById(R.id.tv_hour_unit); tv_min_decade = (TextView) view.findViewById(R.id.tv_min_decade); tv_min_unit = (TextView) view.findViewById(R.id.tv_min_unit); tv_sec_decade = (TextView) view.findViewById(R.id.tv_sec_decade); tv_sec_unit = (TextView) view.findViewById(R.id.tv_sec_unit); layDays = (LinearLayout) view.findViewById(R.id.lay_days); layHour = (LinearLayout) view.findViewById(R.id.lay_hour); layMin = (LinearLayout) view.findViewById(R.id.lay_min); layS = (LinearLayout) view.findViewById(R.id.lay_s); } public void setOnTimeOutCallBack(OnTimeOutCallBack callBack) { this.callBack = callBack; } /** * @param * @return void * @throws * @Description: 开始计时 */ public void start() { if (timer == null) { timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { handler.sendEmptyMessage(0); } }, 0, 1000); } } /** * @param * @return void * @throws * @Description: 停止计时 */ public void stop() { if (timer != null) { timer.cancel(); timer = null; } } /** * @param * @return void * @throws Exception * @throws * @Description: 设置倒计时的时长 */ public void setTime(int day, int hour, int min, int sec) { try { if (hour >= 24 || min >= 60 || sec >= 60 || hour < 0 || min < 0 || sec < 0) { throw new RuntimeException("Time format is error,please check out your code"); } this.day = day; days_decade = day / 10; days_unit = day - days_decade * 10; hour_decade = (hour) / 10; hour_unit = (hour) - hour_decade * 10; min_decade = min / 10; min_unit = min - min_decade * 10; sec_decade = sec / 10; sec_unit = sec - sec_decade * 10; tv_days_decade.setText(days_decade + ""); tv_days_unit.setText(days_unit + ""); tv_hour_decade.setText(hour_decade + ""); tv_hour_unit.setText(hour_unit + ""); tv_min_decade.setText(min_decade + ""); tv_min_unit.setText(min_unit + ""); tv_sec_decade.setText(sec_decade + ""); tv_sec_unit.setText(sec_unit + ""); if (day <= 0) { layDays.setVisibility(GONE); } else { layDays.setVisibility(VISIBLE); } } catch (Exception e) { e.printStackTrace(); } } /** * @param * @return boolean * @throws * @Description: 倒计时 */ private void countDown() { if (isCarry4Unit(tv_sec_unit)) { if (isCarry4Decade(tv_sec_decade)) { if (isCarry4Unit(tv_min_unit)) { if (isCarry4Decade(tv_min_decade)) { if (isHourUnit(tv_hour_unit)) { if (isHourDecade(tv_hour_decade)) { if (isDayUnit(tv_days_unit)) { if (isDayDecade(tv_days_decade)) { if (callBack != null) { callBack.onCallBack(); } Log.d("TEST", "时间到了"); stop(); } } } } } } } }} /** * @param * @return boolean * @throws * @Description: 天数变化十位，并判断是否需要进位 */ private boolean isDayDecade(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 9; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } /** * @param * @return boolean * @throws * @Description: 天数变化个位，并判断是否需要进位 */ private boolean isDayUnit(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 9; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } /** * @param * @return boolean * @throws * @Description: 小时变化十位，并判断是否需要进位 */ private boolean isHourDecade(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 2; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } /** * @param * @return boolean * @throws * @Description: 小时变化个位，并判断是否需要进位 */ private boolean isHourUnit(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 3; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } /** * @param * @return boolean * @throws * @Description: 分钟、秒钟变化十位，并判断是否需要进位 */ private boolean isCarry4Decade(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 5; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } /** * @param * @return boolean * @throws * @Description: 分钟、秒钟变化个位，并判断是否需要进位 */ private boolean isCarry4Unit(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 9; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } }}"@+id/timerView" android:layout_width="wrap_content" android:layout_height="wrap_content"/> 启动计时器
GoodsDetailTimerView timerView=(LinearLayout) view.findViewById(R.id.lay_timerview);timerView.setTime(day, hour, min, s);// 设置时间(day,hour,min,sec)timerView.start();// 开始倒计时timerView.stop();// 停止倒计时更多相关文章
- Android源码 半小时下完Android系统源码
- Android桌面小部件实例 桌面小时钟
- 实战！半小时写一个脑力小游戏 [每日前端夜话0x21]
- PHP如何计算两个时间段交集的天数？
- 两小时学会用php做网站购物车
- 一小时学会简易在线投票系统（php）