我正在尝试更改android.support.v7.app.AlertDialog
标题文字的字体。
方法1:
TextView title = (TextView) dialog.findViewById(android.R.id.title); //returns null
方法2:
final int titleId = context.getResources().getIdentifier("alertTitle", "id", "android");
TextView title = (TextView) dialog.findViewById(titleId); //Also returns null.
还有其他方法可以获得标题TextView
吗?
请注意我不想使用自定义布局。
感谢。
答案 0 :(得分:4)
我使用此solution :
开始工作 final AlertDialog.Builder alertBuilder = new AlertDialog.Builder(context);
Typeface tf = //get the typeface.
CustomTFSpan tfSpan = new CustomTFSpan(tf);
SpannableString spannableString = new SpannableString(title);
spannableString.setSpan(tfSpan, 0, spannableString.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
alertBuilder.setTitle(spannableString);
AlertDialog dialog = alertBuilder.create();
dialog.show();
<强> CustomTFSpan 强>
public class CustomTFSpan extends TypefaceSpan {
private Typeface typeface;
public CustomTFSpan(Typeface typeface) {
super("");
this.typeface = typeface;
}
@Override
public void updateDrawState(TextPaint ds) {
applyTypeFace(ds, typeface);
}
@Override
public void updateMeasureState(TextPaint paint) {
applyTypeFace(paint, typeface);
}
private static void applyTypeFace(Paint paint, Typeface tf) {
paint.setTypeface(tf);
}
}
答案 1 :(得分:3)
使用此
TextView title = (TextView) dialog.findViewById(R.id.alertTitle);
没有任何自定义标题:)
答案 2 :(得分:0)
您的问题已在此处回答:Change Title Font Of Alert Dialog Box Android
您只需使用textview并将其设置为自定义标题,如下所示:{{1}}
答案 3 :(得分:0)
创建一个简单的TextView
TextView tv;
并替换
builder.setTitle("My Title");
带
builder.setCustomTitle(tv);