Android 动态更改childView属性
我有一个自定义视图,我在其中放了一些TextView,我必须以不同的方式更改每个子视图的布局属性。我无法通过xml更改textview属性 以下是我的xml:Android 动态更改childView属性,android,custom-view,Android,Custom View,我有一个自定义视图,我在其中放了一些TextView,我必须以不同的方式更改每个子视图的布局属性。我无法通过xml更改textview属性 以下是我的xml: <com.squareup.timessquare.CalendarRowView android:layout_width="200dp" android:layout_height="wrap_content" android:paddingBottom="@dimen/calen
<com.squareup.timessquare.CalendarRowView
android:layout_width="200dp"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/calendar_day_headers_paddingbottom">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/CalendarCell.DayHeader"
/>
</com.squareup.timessquare.CalendarRowView>
上面是xml文件,其中定义了8个textview我希望每个textview具有不同的宽度
下面是它的java代码
public static MonthView create(ViewGroup parent, LayoutInflater inflater,
DateFormat weekdayNameFormat, Listener listener, Calendar today)
{
final MonthView view = (MonthView) inflater.inflate(R.layout.month, parent, false);
final int originalDayOfWeek = today.get(Calendar.DAY_OF_WEEK);
int firstDayOfWeek = today.getFirstDayOfWeek();
final CalendarRowView headerRow = (CalendarRowView) view.grid.getChildAt(0);
for (int offset = 0; offset < 7; offset++)
{
today.set(Calendar.DAY_OF_WEEK, firstDayOfWeek + offset);
final TextView **textView** = (TextView) headerRow.getChildAt(offset);
textView.setText(weekdayNameFormat.format(today.getTime()));
}
today.set(Calendar.DAY_OF_WEEK, originalDayOfWeek);
view.listener = listener;
return view;
}
public static MonthView create(视图组父视图、布局、充气机、,
DateFormat weekdayNameFormat、侦听器、日历(今天)
{
最终MonthView视图=(MonthView)充气器充气(R.layout.month,父项,false);
final int originalDayOfWeek=today.get(Calendar.DAY/u周);
int firstDayOfWeek=today.getFirstDayOfWeek();
最终CalendarRowView头错误=(CalendarRowView)view.grid.getChildAt(0);
对于(int offset=0;offset<7;offset++)
{
today.set(Calendar.DAY\u OF_WEEK,firstDayOfWeek+offset);
最终文本视图**文本视图**=(文本视图)headErrorw.getChildAt(偏移量);
textView.setText(weekdayNameFormat.format(today.getTime());
}
today.set(Calendar.DAY\u OF_WEEK,originalDayOfWeek);
view.listener=监听器;
返回视图;
}
将充气器与XML一起使用会将布局限制为XML中的布局
要动态更改布局属性,还必须动态创建布局,
例如:
CalendarRowView calenderViewGroup = new CalendarRowView(thisContext);
int widthNeeded = 300; // in pixels
TextView someTextView = new TextView(thisContext);
someTextView.setText("this is my text");
someTextView.setWidth(widthNeeded );
someTextView.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
calenderViewGroup.addView(someTextView);
有关更多可用方法,请参见此处的公共方法