Source code
package android.support.v7.internal.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.support.v7.appcompat.R;
import android.text.Layout;
import android.util.AttributeSet;
import android.widget.TextView;
public class DialogTitle extends TextView {
public DialogTitle(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public DialogTitle(Context context, AttributeSet attrs) {
super(context, attrs);
}
public DialogTitle(Context context) {
super(context);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
Layout layout = getLayout();
if (layout != null) {
int lineCount = layout.getLineCount();
if (lineCount > 0 && layout.getEllipsisCount(lineCount - 1) > 0) {
setSingleLine(false);
setMaxLines(2);
TypedArray a = getContext().obtainStyledAttributes(null, R.styleable.TextAppearance, 16842817, 16973892);
int textSize = a.getDimensionPixelSize(R.styleable.TextAppearance_android_textSize, 0);
if (textSize != 0) {
setTextSize(0, (float) textSize);
}
a.recycle();
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
}
}