Question

我想在单击textview文本的每个单词时重定向到不同的链接，在搜索时，我找到了解决方案，通过该解决方案，我单击了textview文本的每个单词，并第一个单词重定向来链接其工作正确，但其他字词未重定向。我要去哪里错了？

我的textview字符串是：

Disclamer | Privacy Policy | Terms of Use \u2022 All Rights Reserved &#169; company 2018.

代码：

  disclamer = findViewById(R.id.disclamerText);

    disclamer.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
                mOffset = disclamer.getOffsetForPosition(motionEvent.getX(), motionEvent.getY());
                //  mTxtOffset.setText("" + mOffset);
                if (findWordForRightHanded(disclamer.getText().toString(), mOffset).equalsIgnoreCase("Disclamer"))
                {
                    Intent viewIntent = new Intent("android.intent.action.VIEW",
                                    Uri.parse("https://www.company.com/disclaimer.php"));
                    startActivity(viewIntent);
                }


                if (findWordForRightHanded(disclamer.getText().toString(), mOffset).equalsIgnoreCase("Privacy"))
                {
                    Intent viewIntent = new Intent("android.intent.action.VIEW",
                            Uri.parse("https://www.company.com/privacy.php"));
                    startActivity(viewIntent);
                }

                if (findWordForRightHanded(disclamer.getText().toString(), mOffset).equalsIgnoreCase("Terms"))
                {
                    Intent viewIntent = new Intent("android.intent.action.VIEW",
                            Uri.parse("https://www.company.com/terms-and-cond.php"));
                    startActivity(viewIntent);
                }
                if (findWordForRightHanded(disclamer.getText().toString(), mOffset).equalsIgnoreCase("company"))
                {
                    Intent viewIntent = new Intent("android.intent.action.VIEW",
                            Uri.parse("https://www.company.com"));
                    startActivity(viewIntent);
                }

              Toast.makeText(getApplicationContext(), findWordForRightHanded(disclamer.getText().toString(), mOffset), Toast.LENGTH_SHORT).show();

            }
            return false;
        }
    });

方法

    private String findWordForRightHanded(String str, int offset) { // when you touch ' ', this method returns left word.
    if (str.length() == offset) {
        offset--; // without this code, you will get exception when touching end of the text
    }

    if (str.charAt(offset) == ' ') {
        offset--;
    }
    int startIndex = offset;
    int endIndex = offset;

    try {
        while (str.charAt(startIndex) != ' ' && str.charAt(startIndex) != '\n') {
            startIndex--;
        }
    } catch (StringIndexOutOfBoundsException e) {
        startIndex = 0;
    }

    try {
        while (str.charAt(endIndex) != ' ' && str.charAt(endIndex) != '\n') {
            endIndex++;
        }
    } catch (StringIndexOutOfBoundsException e) {
        endIndex = str.length();
    }

    // without this code, you will get 'here!' instead of 'here'
    // if you use only english, just check whether this is alphabet,
    // but 'I' use korean, so i use below algorithm to get clean word.
    char last = str.charAt(endIndex - 1);
    if (last == ',' || last == '.' ||
            last == '!' || last == '?' ||
            last == ':' || last == ';') {
        endIndex--;
    }

    return str.substring(startIndex, endIndex);
}

Answer 1

我觉得你很困惑。首先，从motionEvent对象获得的x和y值表示触摸的X和Y屏幕坐标，这与作为findWordForRightHanded函数的参数的期望偏移量完全不同。 findWordForRightHanded中的偏移量表示字符串文本中的索引。

因此，如果没有映射功能，就无法将运动事件中的坐标作为偏移量传递，该函数会将字符串中的每个字符偏移量映射到屏幕中的坐标

单击每个textview单词时，文本重定向到链接

1 个答案: