android:layout_width="230dp" android:layout_height="40dp" android:drawableLeft="@drawable/login_user" android:drawablePadding="15dp" android:hint="请输入账号或手机号" android:textColorHint="#FFFFFF" android:textSize="13sp" />

下面是对应的 Activity，部分代码如下：

public class LoginActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login_index);
        //控制登录用户名图标大小
        EditText etUserName = (EditText) findViewById(R.id.et_user_name);
        Drawable drawable = getResources().getDrawable(R.drawable.login_user);