Android的分颜色的DatePicker对话框 [英] Android divider color DatePicker dialog

问题描述

我试图改变蓝分隔的颜色在对话框一个datepicker。这仅仅是用一个datepicker和按钮栏正常DialogFragment。

I'm trying to change color of the blue dividers for a DatePicker in a dialog. This is just a normal DialogFragment with a DatePicker and a ButtonBar.

有谁知道改变这些分隔，或者如果它甚至有可能不会有一个自定义的更换整个的DatePicker？

Does anyone know to change these dividers, or if it's even possible without replacing the entire DatePicker with a custom one?

小咆哮

现在我已经看到太多的答案提示如下code：

Now I've seen too many answers suggesting the following code:

<style name="datePickerTheme" parent="@android:style/Widget.DeviceDefault.DatePicker">
    <item name="android:divider">**your @drawable/ or @color/ here**</item>
</style>

这根本不​​起作用。有你们这表明code尝试过吗？它的应的工作完美，但它似乎并没有与DatePicker的工作。

Which simply does not work. Have you guys tried this before suggesting this code? It should work perfectly, but it does not seem to work with the DatePicker.

推荐答案

我通过这样做解决了这个：

I solved this by doing this:

我改变了的DatePicker 分频器反射通过查找 mSelectionDivider 。然后，我有问题的标题分隔看傻了，所以我增加了一个的TextView 上面的的LinearLayout 含3 datepickers 和使用 newFragment.setTitle（）;  删除原来的。

I changed the DatePicker divider with reflection by finding the "mSelectionDivider". Then I had problems with the Title divider looking stupid, so i added a textview above the LinearLayout containing the 3 datepickers and used newFragment.setTitle(""); to remove the original one.

实例分绘制：贷谁做这个的家伙！ ：） http://ge.tt/8wK7TZ71/v/0?c

结果画面 ＆LT; -My结果

例如：

    public DatePickerDialog makeDatePicker(OnDateSetListener listener, Calendar cal) {
    Calendar c;
    if (cal == null) {
        c = Calendar.getInstance();
    } else {
        c = cal;
    }
    int year = c.get(Calendar.YEAR);
    int month = c.get(Calendar.MONTH);
    int day = c.get(Calendar.DAY_OF_MONTH);
    DatePickerDialog newFragment = new DatePickerDialog(this, listener, year, month, day);

    // removes the original topbar:
    newFragment.setTitle(""); 

    // Divider changing:
    DatePicker dpView = newFragment.getDatePicker(); 
    LinearLayout llFirst = (LinearLayout) dpView.getChildAt(0);
    LinearLayout llSecond = (LinearLayout) llFirst.getChildAt(0);
    for (int i = 0; i < llSecond.getChildCount(); i++) {
        NumberPicker picker = (NumberPicker) llSecond.getChildAt(i); // Numberpickers in llSecond
        // reflection - picker.setDividerDrawable(divider); << didn't seem to work.
        Field[] pickerFields = NumberPicker.class.getDeclaredFields();
        for (Field pf : pickerFields) {
            if (pf.getName().equals("mSelectionDivider")) {
                pf.setAccessible(true);
                try {
                    pf.set(picker, getResources().getDrawable(R.drawable.np_numberpicker_selection_divider_orange));
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                } catch (NotFoundException e) {
                    e.printStackTrace();
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                }
                break;
            }
        }
    }
    // New top:
    int titleHeight = 90;
    // Container:
    LinearLayout llTitleBar = new LinearLayout(this);
    llTitleBar.setOrientation(LinearLayout.VERTICAL);
    llTitleBar.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, titleHeight));

    // TextView Title:
    TextView tvTitle = new TextView(this);
    tvTitle.setText("Select a date");
    tvTitle.setGravity(Gravity.CENTER);
    tvTitle.setPadding(10, 10, 10, 10);
    tvTitle.setTextSize(24);
    tvTitle.setTextColor(Color.BLACK);
    tvTitle.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, titleHeight-2));
    llTitleBar.addView(tvTitle);

    // View line:
    View vTitleDivider = new View(this);
    vTitleDivider.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, 2));
    vTitleDivider.setBackgroundColor(getResources().getColor(R.color.crumblrOrange));
    llTitleBar.addView(vTitleDivider);

    dpView.addView(llTitleBar);
    FrameLayout.LayoutParams lp = (android.widget.FrameLayout.LayoutParams) llFirst.getLayoutParams();
    lp.setMargins(0, titleHeight, 0, 0);
    return newFragment;
}

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