代码设置view的大小

LayoutParams params = new LayoutParams(Utils.dip2px(mContext, 55), Utils.dip2px(mContext, 55));
params.leftMargin = (int) (10 * density);
int student_size = classDetailInfoBean.getStudents().size() >= 5 ? 5 : classDetailInfoBean.getStudents().size();
for (int i = 0; i < student_size; i++) {
TextView gridview_class_students = new TextView(mContext);
String name = classDetailInfoBean.getStudents().get(i).getStudentName();
gridview_class_students.setText(name.substring(name.length() - 1, name.length()));
gridview_class_students.setBackgroundResource(R.drawable.photo_bg);
gridview_class_students.setTextSize(30);
gridview_class_students.setTextColor(R.color.text_black);
gridview_class_students.setGravity(Gravity.CENTER);
lila_class_students_photoes.addView(gridview_class_students, params);
}