Android TextView 设置字体大小的方法

废话不多说了，直接给大家贴代码了，具体代码如下所示：

package com.example.yanlei.yl4;
import android.graphics.color;
import android.os.bundle;
import android.support.v7.app.appcompatactivity;
import android.text.spannable;
import android.text.style.absolutesizespan;
import android.text.style.backgroundcolorspan;
import android.text.style.stylespan;
import android.view.menu;
import android.view.menuitem;
import android.view.view;
import android.widget.button;
import android.widget.edittext;
import android.widget.textview;
public class mainactivity extends appcompatactivity {
textview edit;
button sendbu;
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);

edit = (textview) findviewbyid(r.id.textview);
sendbu = (button) findviewbyid(r.id.button);
sendbu.setonclicklistener(new buttonclicklistener());
}
private class buttonclicklistener implements view.onclicklistener {
public void onclick(view v) {
//system.exit(0);
edit.settext("闫磊我爱你");
edit.settextcolor(color.blue);

edit.settext("这是我的第一个textview，嘿嘿", textview.buffertype.editable);
/**
* 要设置文本的背景色，
* 必须将文本设置成buffertype.spannable,buffertype.editable
*/
spannable sp = (spannable) edit.gettext();
//设置红色背景
sp.setspan(new backgroundcolorspan(color.red), 3, 8,
spannable.span_exclusive_exclusive);

sp.setspan(new stylespan(android.graphics.typeface.bold_italic),
0, 7, spannable.span_exclusive_exclusive); //设置斜体
sp.setspan(new absolutesizespan(80), 0, 2, spannable.span_exclusive_exclusive); //设置字体大小
edit.settext(sp);

//edit.setheight(60);
//android.os.process.killprocess(android.os.process.mypid());
}
}
@override
public boolean oncreateoptionsmenu(menu menu) {
// inflate the menu; this adds items to the action bar if it is present.
getmenuinflater().inflate(r.menu.menu_main, menu);
return true;
}
@override
public boolean onoptionsitemselected(menuitem item) {
// handle action bar item clicks here. the action bar will
// automatically handle clicks on the home/up button, so long
// as you specify a parent activity in androidmanifest.xml.
int id = item.getitemid();
//noinspection simplifiableifstatement
if (id == r.id.action_settings) {
return true;
}
return super.onoptionsitemselected(item);
}
}

以上代码内容是小编给大家分享的android textview 设置字体大小的方法，希望对大家有所帮助。