时间选择器

刚做一个测试项目，有一个时间选择器，后面虽然不打算用了，但还是要贴出来，毕竟花了一点时间

现在就直接上代码了，里面会讲的很详细，自定义View的

DateSelect.java

public class DateSelect extends LinearLayout implements View.OnClickListener {    private Context context;//上下文    private LinearLayout layout;//两个button布局    private TextView tvShowDate;//显示日期    private TextView tvShowWeek;//显示星期    private Button btnUp;//日期加1    private Button btnDown;//日期减1    private DatePickerDialog datePickerDialog;//弹出框日期控件    public DateSelect(Context context, AttributeSet attrs) {        super(context, attrs);        this.context = context;        //加载布局        LayoutInflater.from(context).inflate(R.layout.view_date_select, this, true);        //初始化        layout = (LinearLayout) findViewById(R.id.date_select_ll_layout);        tvShowDate = (TextView) findViewById(R.id.date_select_tv_show_date);        tvShowWeek = (TextView) findViewById(R.id.date_select_tv_show_week);        btnUp = (Button) findViewById(R.id.date_select_btn_up);        btnDown = (Button) findViewById(R.id.date_select_btn_down);        //获取相关属性        TypedArray attributes = context.obtainStyledAttributes(attrs, R.styleable.date_select);        if (attributes != null) {            //设置背景 , 注意R.styleable.date_select_bgColor 是用_拼接的            int bgColorId = attributes.getResourceId(R.styleable.date_select_bg_color, Color.WHITE);            this.setBackgroundColor(bgColorId);            //获取文字            String textDate = attributes.getString(R.styleable.date_select_tv_show_date_text);            String textWeek = attributes.getString(R.styleable.date_select_tv_show_week_text);            //获取字体颜色            int textColor = attributes.getColor(R.styleable.date_select_tv_show_time_text_color, Color.BLACK);            //获取字体大小            float textSize = attributes.getInt(R.styleable.date_select_tv_show_time_text_size, 18);            if (!TextUtils.isEmpty(textDate)) {                tvShowDate.setText(textDate);                tvShowDate.setTextColor(textColor);                tvShowDate.setTextSize(textSize);                tvShowWeek.setText(textWeek);                tvShowWeek.setTextColor(textColor);                tvShowWeek.setTextSize(textSize);            }            //设置btnUp的背景            int btnUpBgId = attributes.getResourceId(R.styleable.date_select_btn_up_bg, -1);            if (btnUpBgId != -1) {                btnUp.setBackgroundResource(btnUpBgId);            }            //设置btnDown的背景            int btnDownBgId = attributes.getResourceId(R.styleable.date_select_btn_down_bg, -1);            if (btnDownBgId != -1) {                btnDown.setBackgroundResource(btnDownBgId);            }            //是否隐藏两个Button，默认隐藏            boolean isVisible = attributes.getBoolean(R.styleable.date_select_layout_visible, true);            if (isVisible) {                layout.setVisibility(View.GONE);            } else {                layout.setVisibility(View.VISIBLE);            }            //回收 TypedArray,用于后续调用时可复用之。当调用该方法后，不能再操作该变量。            attributes.recycle();        }        setOnClickListener();    }    //添加事件    private void setOnClickListener() {        btnDown.setOnClickListener(this);        btnUp.setOnClickListener(this);        tvShowDate.setOnClickListener(this);        tvShowWeek.setOnClickListener(this);    }    /**     *  设置显示日期     *  @param dateStr 日期字符串     */    public void setTvShowDate(String dateStr){        if(!TextUtils.isEmpty(dateStr)){            tvShowDate.setText(dateStr);            tvShowWeek.setText(DateUtil.getWeekByDate(DateUtil.getDateByStr(dateStr)));        }    }    /**     *  获取当前日期     */    public Date getTvShowDate(){        return DateUtil.getDateByStr(tvShowDate.getText().toString());    }    @Override    public void onClick(View v) {        switch (v.getId()) {            //选择日期            case R.id.date_select_tv_show_date:            case R.id.date_select_tv_show_week:                datePickerDialog = new DatePickerDialog(this.context, AlertDialog.THEME_HOLO_DARK, new DatePickerDialog.OnDateSetListener() {                    public void onDateSet(DatePicker datePicker, int mYear, int mMonth, int mDay) {                    }                }, Calendar.getInstance().get(Calendar.YEAR), Calendar.getInstance().get(Calendar.MONTH), Calendar.getInstance().get(Calendar.DAY_OF_MONTH));                datePickerDialog.setTitle(this.context.getString(R.string.date_select_title));                datePickerDialog.setButton(DialogInterface.BUTTON_POSITIVE, this.context.getString(R.string.sure),                        new DialogInterface.OnClickListener() {                            @Override                            public void onClick(DialogInterface dialogInterface, int i) {                                DatePicker mDatePicker = datePickerDialog.getDatePicker();                                int mYear = mDatePicker.getYear();                                int mMonth = mDatePicker.getMonth() + 1;                                int mDay = mDatePicker.getDayOfMonth();                                String dateStr = mYear + "-" + (mMonth >= 10 ? mMonth : ("0" + mMonth)) + "-" + (mDay >= 10 ? mDay : ("0" + mDay));                                //显示日期                                tvShowDate.setText(DateUtil.getStrByDate(DateUtil.getDateByStr(dateStr)));                                //星期显示                                String weekStr = DateUtil.getWeekByDate(DateUtil.getDateByStr(dateStr));                                tvShowWeek.setText(weekStr);                                dialogInterface.dismiss();                            }                        });                datePickerDialog.setButton(DialogInterface.BUTTON_NEGATIVE, this.context.getString(R.string.cancel),                        new DialogInterface.OnClickListener() {                            public void onClick(DialogInterface dialogInterface, int i) {                                dialogInterface.dismiss();                            }                        });                datePickerDialog.show();                break;            //日期减一天            case R.id.date_select_btn_up:                String dateStr = tvShowDate.getText().toString();                Date date = DateUtil.getDateByStr(dateStr);                Calendar calendar = Calendar.getInstance();                calendar.setTime(date);                calendar.add(Calendar.DATE,-1);                tvShowDate.setText(DateUtil.getStrByDate(calendar.getTime()));                String weekStr = DateUtil.getWeekByDate(calendar.getTime());                tvShowWeek.setText(weekStr);                break;            //日期增加一天            case R.id.date_select_btn_down:                dateStr = tvShowDate.getText().toString();                date = DateUtil.getDateByStr(dateStr);                calendar = Calendar.getInstance();                calendar.setTime(date);                calendar.add(Calendar.DATE,1);                tvShowDate.setText(DateUtil.getStrByDate(calendar.getTime()));                weekStr = DateUtil.getWeekByDate(calendar.getTime());                tvShowWeek.setText(weekStr);                break;        }    }}

布局文件dialog_custom.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/dialog_custom_layout"    android:orientation="vertical"    android:layout_width="match_parent"    android:layout_height="match_parent"></LinearLayout>

资源文件attr.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <!-- 定义时间控件里面的相关属性 -->    <declare-styleable name="date_select">        <!-- 显示时间的背景 -->                <attr name="bg_color" format="reference|integer" />      <!--   显示日期 -->        <attr name="tv_show_date_text" format="string" />        <!--显示星期  -->        <attr name="tv_show_week_text" format="string" />        <!-- 显示字体的姿色 -->        <attr name="tv_show_time_text_color" format="reference|integer" />        <!-- 显示字体的大小 -->        <attr name="tv_show_time_text_size" format="reference|integer" />        <!-- 显示按钮up背景 -->        <attr name="btn_up_bg" format="reference|integer" />        <!-- 显示按钮down背景 -->        <attr name="btn_down_bg" format="reference|integer" />        <!-- 是否隐藏两个button -->        <attr name="layout_visible" format="boolean" />    </declare-styleable></resources>

时间转换工具
DateUtil.java

public class DateUtil {    private final static String TAG = DateUtil.class.getName();    /*     *根据日期获取星期     */    public static String getWeekByDate(Date date){        String[] weeks = {"周日","周一","周二","周三","周四","周五","周六"};        Calendar calendar = Calendar.getInstance();        calendar.setTime(date);        int w = calendar.get(Calendar.DAY_OF_WEEK)-1;        if (w<0) w = 0;        return weeks[w];    }    /*    *字条串转换成日期    */    public static Date getDateByStr(String dateStr){        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");        try {            Date date = simpleDateFormat.parse(dateStr);            return date;        } catch (ParseException e) {            e.printStackTrace();        }        return new Date();    }    /*    *日期转换成字符串     */    public static String getStrByDate(Date date){        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");        return simpleDateFormat.format(date);    }}

界面引用

<com.wecon.pa.view.widget.DateSelect            android:id="@+id/main_date"            android:layout_width="0px"            android:layout_height="30px"            android:layout_weight="2"            lee:layout_visible="false"            lee:btn_down_bg="@mipmap/down"            lee:btn_up_bg="@mipmap/up"            lee:tv_show_date_text="2018/09/29"            lee:tv_show_time_text_color="@color/colorBlack"            lee:tv_show_time_text_size="10"            lee:tv_show_week_text="周一" />