1,中间混杂不同颜色的字体
public static void
setSize(TextView tv, String text,
int
one,
int
tow, String colors,
int
sizea,
int
three,
int
four, String colors1,
int
sizea1) {
SpannableString sp = new SpannableString(text);
DisplayMetrics ff = MyApp.getInstance().getResources().getDisplayMetrics();
int size = ( int ) TypedValue.applyDimension(TypedValue. COMPLEX_UNIT_SP , sizea, ff);
sp.setSpan( new AbsoluteSizeSpan(size), one, tow, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
sp.setSpan( new ForegroundColorSpan(Color.parseColor(colors)), one, tow, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
int size2 = ( int ) TypedValue.applyDimension(TypedValue. COMPLEX_UNIT_SP , sizea1, ff);
sp.setSpan( new AbsoluteSizeSpan(size2), three, four, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
sp.setSpan( new ForegroundColorSpan(Color.parseColor(colors1)), three, four, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
tv.append(sp);
android:textStyle="bold"
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxEms="18"
android:singleLine="true"
android:ellipsize="end" />
SpannableString sp = new SpannableString(text);
DisplayMetrics ff = MyApp.getInstance().getResources().getDisplayMetrics();
int size = ( int ) TypedValue.applyDimension(TypedValue. COMPLEX_UNIT_SP , sizea, ff);
sp.setSpan( new AbsoluteSizeSpan(size), one, tow, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
sp.setSpan( new ForegroundColorSpan(Color.parseColor(colors)), one, tow, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
int size2 = ( int ) TypedValue.applyDimension(TypedValue. COMPLEX_UNIT_SP , sizea1, ff);
sp.setSpan( new AbsoluteSizeSpan(size2), three, four, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
sp.setSpan( new ForegroundColorSpan(Color.parseColor(colors1)), three, four, Spanned. SPAN_EXCLUSIVE_EXCLUSIVE );
tv.append(sp);
}
具体使用:
gongxi.setText(
"恭喜 "
);
String string = str + " 获得 " + list .get( count ).getTitle();
setSize( gongxi, string, 0 , str .length(),
"#5eccff" , 13 , str .length(), string.length(),
3,文字加粗
String string = str + " 获得 " + list .get( count ).getTitle();
setSize( gongxi, string, 0 , str .length(),
"#5eccff" , 13 , str .length(), string.length(),
"#646464"
,
13
);
2,
动态更改字体的大小
关键代码
- setTextSize(TypedValue.COMPLEX_UNIT_PX,15); //22像素
- setTextSize(TypedValue.COMPLEX_UNIT_SP,15); //22SP
- setTextSize(TypedValue.COMPLEX_UNIT_DIP,15);//22DIP
android:textStyle="bold"
4,动态设置view,textview,imageview的颜色背景
Android 代码中使用Color工具类 方法parseColor解析
view.setBackgroundColor(Color.parseColor("#365663"));
rb_jjss
.setTextColor(Color.parseColor(
"#00ac8b"
));
yuanquan
.setImageResource(R.drawable.
lvquan
);
5,
设置为数字
android
:password=
"true"
6,设置输入的只是数字
android
:inputType=
"number"
7,添加下划线
tv_mima_yazheng.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG);
8,textview末尾省略号 最长为18位,单行
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxEms="18"
android:singleLine="true"
android:ellipsize="end" />
9.把电话号码变成星号
(1),获得解析的数据并转换成char【】
str = data.getString("mobile");
char[] ch = str.toCharArray();
(2),把textview赋值一个方法change(ch)
tv_dianhua.setText(change(ch));
(3)change(ch)方法
public String change(char[] ch ){
return ch[0] + "" + ch[1] + "" + ch[2] + "****" + ch[7] + "" +ch[8] + "" + ch[9] + "" + ch[10];
}
10正则表达式判断字符串是否是纯数字
public boolean isNumeric(String str){
Pattern pattern = Pattern.compile("[0-9]*");
Matcher isNum = pattern.matcher(str);
if( !isNum.matches() ){
return false;
}
return true;
}