在对话框

Question

我的自定义对话框中有一个时间选择器。这是结果：

这是我的代码：

<style name="DialogStyler2" parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="android:background">#FFFFFF</item>
    <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
    <item name="android:windowNoTitle">true</item>
</style>

final Dialog dialog = new Dialog(SabadKharid_s1.this, R.style.DialogStyler2);
                    dialog.setContentView(R.layout.dialogtime);

                    timePicker = (TimePicker) dialog.findViewById(R.id.timePicker);
                    timePicker.setIs24HourView(true);

                    WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
                    lp.copyFrom(dialog.getWindow().getAttributes());
                    lp.width = WindowManager.LayoutParams.MATCH_PARENT;
                    lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
                    dialog.show();
                    dialog.getWindow().setAttributes(lp);

如您所见，标题中的小时和分钟textView为白色。如何更改背景颜色？

Answer 1

如果您更改“背景”而不是“windowBackground”的颜色，则会发生这种情况。这对我有用：

styles.xml

<style name="DialogTheme" parent="Theme.AppCompat.Dialog">
    <item name="android:windowBackground">#333</item>
    <item name="colorAccent">#2BF</item>
</style>

MainActivity.java

Calendar cal = Calendar.getInstance();
TimePickerDialog tpd = new TimePickerDialog(
        this,
        R.style.DialogTheme,
        this, // must implement TimePickerDialog.OnTimeSetListener
        cal.get(Calendar.HOUR_OF_DAY),
        cal.get(Calendar.MINUTE),
        false);

tpd.show();

Answer 2

背景不起作用，试试这个 -

<style name="DialogStyler2" parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="android:colorAccent">@color/your_accent</item>
    <item name="android:colorPrimary">@color/your_primary</item>
    <item name="android:colorPrimaryDark">@color/your_primary_dark</item>
</style>

Answer 3

您可以参考以下代码来获取时间戳样式。

MainActivity.java

import static android.R.attr.button;
public class MainActivity extends AppCompatActivity {
    Calendar calendar ;
    Button button;
    TimePickerDialog timePickerDialog ;
    int CalendarHour, CalendarMinute;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button)findViewById(R.id.button);
        calendar = Calendar.getInstance();
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                CalendarHour = calendar.get(Calendar.HOUR_OF_DAY);
                CalendarMinute = calendar.get(Calendar.MINUTE);
                timePickerDialog = new TimePickerDialog(MainActivity.this, R.style.DialogTheme,new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
                        Toast.makeText(MainActivity.this, "Time  Selected"+selectedHour+":"+selectedMinute, Toast.LENGTH_SHORT).show();
                    }
                }, CalendarHour, CalendarMinute, true);//Yes 24 hour time
                timePickerDialog.setTitle("Select Time");
                timePickerDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
                    @Override
                    public void onCancel(DialogInterface dialogInterface) {
                        Toast.makeText(MainActivity.this, "Time Not Selected", Toast.LENGTH_SHORT).show();
                    }
                });
                timePickerDialog.show();
            }
        });
    }
}

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <Button
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="CLICK HERE TO SHOW TIME PICKER DIALOG WITH MATERIAL DESIGN THEME"
        android:id="@+id/button"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true" />
</RelativeLayout>

Style.xml

<style name="DialogTheme" parent="Theme.AppCompat.Light.Dialog">
    <item name="colorAccent">@color/purple</item>
    <item name="colorControlNormal">@color/orange</item>
</style>