Malcolm 的解决方案适用于 API>=9。这是旧 API 的解决方案:
诀窍是创建标准通知对象,然后遍历contentView
由Notification.setLatestEventInfo(...)
. 当您找到正确的 TextView 时,只需获取tv.getTextColors().getDefaultColor()
.
这是提取默认文本颜色和文本大小(按比例密度像素 - sp)的代码。
private Integer notification_text_color = null;
private float notification_text_size = 11;
private final String COLOR_SEARCH_RECURSE_TIP = "SOME_SAMPLE_TEXT";
private boolean recurseGroup(ViewGroup gp)
{
final int count = gp.getChildCount();
for (int i = 0; i < count; ++i)
{
if (gp.getChildAt(i) instanceof TextView)
{
final TextView text = (TextView) gp.getChildAt(i);
final String szText = text.getText().toString();
if (COLOR_SEARCH_RECURSE_TIP.equals(szText))
{
notification_text_color = text.getTextColors().getDefaultColor();
notification_text_size = text.getTextSize();
DisplayMetrics metrics = new DisplayMetrics();
WindowManager systemWM = (WindowManager)getSystemService(Context.WINDOW_SERVICE);
systemWM.getDefaultDisplay().getMetrics(metrics);
notification_text_size /= metrics.scaledDensity;
return true;
}
}
else if (gp.getChildAt(i) instanceof ViewGroup)
return recurseGroup((ViewGroup) gp.getChildAt(i));
}
return false;
}
private void extractColors()
{
if (notification_text_color != null)
return;
try
{
Notification ntf = new Notification();
ntf.setLatestEventInfo(this, COLOR_SEARCH_RECURSE_TIP, "Utest", null);
LinearLayout group = new LinearLayout(this);
ViewGroup event = (ViewGroup) ntf.contentView.apply(this, group);
recurseGroup(event);
group.removeAllViews();
}
catch (Exception e)
{
notification_text_color = android.R.color.black;
}
}
打电话extractColors
即。在您的服务的 onCreate() 中。然后,当您创建自定义通知时,您想要的颜色和文本大小位于notification_text_color
和中notification_text_size
:
Notification notification = new Notification();
RemoteViews notification_view = new RemoteViews(getPackageName(), R.layout.notification);
notification_view.setTextColor(R.id.label, notification_text_color);
notification_view.setFloat(R.id.label, "setTextSize", notification_text_size);