android 设置指定字符样式

TextViewStringStyle.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        String str1 = "你有${ccccc}财产需要领";
        //String str1 = "${ccccc}你有财产需要领$";
        //String str1 = "你有财产需要领${ccccc}";

        String str2 = "￥100";
        String str3 = str2 + "&";

        String str4 = str1.replace("${ccccc}", str3);

        int index1 = str4.indexOf("￥");
        int index2 = str4.indexOf("&");

        String str5 = str4.replace("&", "");

        System.out.println(str5);
        System.out.println(index1);
        System.out.println(index2);

        SpannableString spanString = new SpannableString(str5);
        spanString.setSpan(new AbsoluteSizeSpan(480),
                index1 + 1,
                index2,
                Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
        ); //设置指定位置范围的字符大小

        TextView textView = findViewById(R.id.text1);
        textView.setText(spanString);
    }
}