如何在MaterialCalendarView中更改日历日期的背景色 [英] How do I change the background color of calendar dates in MaterialCalendarView
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问题描述
我正在尝试使用收到的JSON响应来更改日期的背景色.但是我遇到了一些困难.
I'm trying to change the background color of dates using a JSON response I get. But I'm having some difficulty.
这是我的代码:
<com.prolificinteractive.materialcalendarview.MaterialCalendarView
android:id="@+id/calendarView"
android:layout_width="match_parent"
android:layout_height="300dp"
android:layout_marginBottom="16dp"
android:layout_marginTop="16dp" />
MainActivty.java
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
calbg();
materialCalendarView.setDateTextAppearance(View.ACCESSIBILITY_LIVE_REGION_ASSERTIVE);
Calendar calendar = Calendar.getInstance();
materialCalendarView.setSelectedDate(calendar.getTime());
materialCalendarView.setOnDateChangedListener(new OnDateSelectedListener() {
get1 = sharedpreferences.getString(CLIENT, "");
materialCalendarView.setDateTextAppearance(getTitleColor());
materialCalendarView.setHeaderTextAppearance(R.style.AppTheme_Dark1);
}
private void calbg() {
// Volley's json array request object
StringRequest stringRequest = new StringRequest(Request.Method.POST, CALENDAR_DATA,
new Response.Listener < String > () {
@Override
public void onResponse(String response) {
JSONObject object = null;
try {
object = new JSONObject(response);
} catch (JSONException e) {
e.printStackTrace();
}
JSONArray jsonarray = null;
try {
jsonarray = object.getJSONArray("Table");
} catch (JSONException e) {
e.printStackTrace();
}
// SimpleDateFormatter formatter = new SimpleDateFormatter(); //TODO: update this line with the correct formatter
List<Event> events = new ArrayList<>();
for (int i = 0; i < jsonarray.length(); i++) {
try {
JSONObject obj = jsonarray.getJSONObject(i);
String str = obj.getString("eventdate").replaceAll("\\D+","");
String upToNCharacters = str.substring(0, Math.min(str.length(), 13));
DateFormat timeZoneFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
timeZoneFormat.setTimeZone(TimeZone.getTimeZone("GMT-8"));
Date time = new java.util.Date(Long.parseLong(upToNCharacters));
// System.out.println(time);
// movie.setDate(String.valueOf(timeZoneFormat.format(time)));
// String str2 = String.valueOf(timeZoneFormat.format(time));
String str1 = obj.optString("eventcolor");
// Date date = formatter.parse(str2);
int color = Integer.parseInt(str1); //TODO: update this line with the correct code to parse your color
Event event = new Event(time, color);
events.add(event);
}
catch (JSONException e) {
e.printStackTrace();
}
}
for (Event event : events) {
//Here is the problem in parameter
EventDecorator eventDecorator = new EventDecorator(event.getDate(), event.getColor());
materialCalendarView.addDecorator(eventDecorator);
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// VolleyLog.d(TAG, "Error: " + error.getMessage());
// hidePDialog();
}
}) {
@Override
protected Map < String, String > getParams() {
Map < String, String > params = new HashMap < String, String > ();
params.put(CLIENT, get1);
return params;
}
};
// Adding request to request queue
MyApplication.getInstance().addToRequestQueue(stringRequest);
}}
JSON响应
{
"Table":[
{
"userid":4,
"eventname":"adi",
"eventdate":"\/Date(1484121600000-0800)\/",
"eventcolor":"2413AD",
"autoid":2005
},
{
"userid":4,
"eventname":"Mandeep",
"eventdate":"\/Date(1480924800000-0800)\/",
"eventcolor":"3A87AD",
"autoid":2002
},
{
"userid":4,
"eventname":"nefv",
"eventdate":"\/Date(1477465200000-0700)\/",
"eventcolor":"39AD37",
"autoid":2
},
]
}
推荐答案
第一步是创建一个DayViewDecorator，它将Date和颜色作为参数:
The first step is to create a DayViewDecorator that will take as parameters a Date and a color:
public class EventDecorator implements DayViewDecorator {
private final Drawable drawable;
private final CalendarDay day;
private final int color;
public EventDecorator(MaterialCalendarView view, Date date, int color) {
this.day = CalendarDay.from(date);
this.color = color;
this.drawable = createTintedDrawable(view.getContext(), color);
}
@Override
public boolean shouldDecorate(CalendarDay day) {
if (this.day.equals(day)) {
return true;
}
return false;
}
@Override
public void decorate(DayViewFacade view) {
view.setSelectionDrawable(drawable);
}
private static Drawable createTintedDrawable(Context context, int color) {
return applyTint(createBaseDrawable(context), color);
}
private static Drawable applyTint(Drawable drawable, int color) {
Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
DrawableCompat.setTint(wrappedDrawable, color);
return wrappedDrawable;
}
private static Drawable createBaseDrawable(Context context) {
return ContextCompat.getDrawable(context, R.drawable.day);
}
}
(注意，我使用了此答案中的代码来应用颜色.此外，由于您未指定，我以为drawable是需要以这种方式着色的某种图像.)
(N.B. I used the code in this answer to apply the tint. Also, since you didn't specify, I have assumed that the drawable is some kind of image that needs tinting in this way.)
下一步是创建一个Event类，用于存储您从API调用解析的事件:
The next step is to create an Event class for storing the events you parse from the API call:
public class Event {
private Date date;
private int color;
public Event(Date date, int color) {
this.date = date;
this.color = color;
}
public Date getDate() {
return date;
}
public int getColor() {
return color;
}
}
现在，我们需要向您的onResponse()方法添加逻辑以解析JSON并为每个事件添加装饰器.很难知道确切写什么，因为您没有提供JSON示例.您之前的问题表明您已经知道如何解析Date，所以我认为这足够了.由于您尚未指定，因此我暂时将其省略.另外，我只是添加到您的代码中-我不会尝试对其进行太多重构.
Now we need to add logic to your onResponse() method to parse the JSON and add decorators for each event. It is hard to know what exactly to write because you haven't given a sample of the JSON. Your previous questions show that you already know how to parse a Date so I think this will be enough. Since you haven't specified, I'll leave it out for now. Also, I'm just appending to your code - I won't try and refactor it much.
@Override
public void onResponse(String response) {
JSONObject object = null;
try {
object = new JSONObject(response);
} catch (JSONException e) {
e.printStackTrace();
}
JSONArray jsonarray = null;
try {
jsonarray = object.getJSONArray("Table");
} catch (JSONException e) {
e.printStackTrace();
}
SimpleDateFormatter formatter = new SimpleDateFormatter(); //TODO: update this line with the correct formatter
List<Event> events = new ArrayList<>();
for (int i = 0; i < jsonarray.length(); i++) {
try {
JSONObject obj = jsonarray.getJSONObject(i);
String str2 = obj.optString("eventdate");
String str1 = obj.optString("eventcolor");
Date date = formatter.parse(str2);
int color = Integer.parseInt(str1); //TODO: update this line with the correct code to parse your color
Event event = new Event(date, color);
events.add(event);
}
catch (JSONException e) {
e.printStackTrace();
}
}
for (Event event : events) {
EventDecorator eventDecorator = new EventDecorator(calendarView, event.getDate(), event.getColor());
calendarView.addDecorator(eventDecorator);
}
}
这篇关于如何在MaterialCalendarView中更改日历日期的背景色的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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