跨越Android的一个特定的词 [英] Span a particular word in android

问题描述

Hello All

在我的Andr​​oid项目中，我想显示一个特定的词说，在串TRIAL这是我的Trial.This审判只是为了好玩。
在android系统如何才能做到这一点。

In my android project i would like to display a particular word say TRIAL in string This is for my Trial.This Trial is just for fun. How can achieve this in android.

我试着用下面code，将仅格式化从15到30的字符串。

I tried using below code which will format only the string from 15 to 30.

TextView TV = (TextView)findViewById(R.id.mytextview01); 
Spannable WordtoSpan = new   SpannableString("I know just how to whisper, And I know    just how to cry,I know just where to find the answers");  
 WordtoSpan.setSpan(new ForegroundColorSpan(Color.BLUE), 15, 30,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 TV.setText(WordtoSpan);

请让我知道如果我能做到这一点的机器人。

Please let me know if i could do this in android.

请转发您的宝贵建议。

在此先感谢：）

推荐答案

在镰刀的回答扩展位，具有全部更换：

Expanding a bit on Scythe's answer, replace them all with:

public class Junk extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView tv = (TextView) findViewById(R.id.textView1);
        String tvText = "This is for my Trial.This Trial is just for fun. Just a Trial";
        tvText+="A Trial. Only a Trial. It's a Trial"; 
        String lookFor = "Trial";
        tv.setText(formatString(tvText, lookFor));
    }

    private Spannable formatString(String targetStr, String lookFor) {

        Spannable spanString = null;
        spanString = new SpannableString(targetStr);
        int fromIndex, startSpan, endSpan;

        fromIndex = 0;
        while (fromIndex < (targetStr.length() - 1)) {
            startSpan = targetStr.indexOf(lookFor, fromIndex);
            if (startSpan == -1)
                break;
            endSpan = startSpan + lookFor.length();
            spanString.setSpan(new ForegroundColorSpan(Color.BLUE), startSpan,
                    endSpan, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            fromIndex = endSpan; 
        }
        return spanString;
    }
}

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