正如标题所说,我想知道是否有可能在单个textview元素中实现两个不同颜色的字符。
当前回答
if (Build.VERSION.SDK_INT >= 24) {
Html.fromHtml(String, flag) // for 24 API and more
} else {
Html.fromHtml(String) // or for older API
}
用于24个API及以上(标志)
public static final int FROM_HTML_MODE_COMPACT = 63;
public static final int FROM_HTML_MODE_LEGACY = 0;
public static final int FROM_HTML_OPTION_USE_CSS_COLORS = 256;
public static final int FROM_HTML_SEPARATOR_LINE_BREAK_BLOCKQUOTE = 32;
public static final int FROM_HTML_SEPARATOR_LINE_BREAK_DIV = 16;
public static final int FROM_HTML_SEPARATOR_LINE_BREAK_HEADING = 2;
public static final int FROM_HTML_SEPARATOR_LINE_BREAK_LIST = 8;
public static final int FROM_HTML_SEPARATOR_LINE_BREAK_LIST_ITEM = 4;
public static final int FROM_HTML_SEPARATOR_LINE_BREAK_PARAGRAPH = 1;
public static final int TO_HTML_PARAGRAPH_LINES_CONSECUTIVE = 0;
public static final int TO_HTML_PARAGRAPH_LINES_INDIVIDUAL = 1;
更多信息
其他回答
是的,如果你用html的font-color属性格式化字符串,然后把它传递给方法html . fromhtml(你的文本在这里)
String text = "<font color=#cc0029>First Color</font> <font color=#ffcc00>Second Color</font>";
yourtextview.setText(Html.fromHtml(text));
很棒的答案!我能够使用Spannable构建彩虹色的文本(所以这可以重复为任何颜色的数组)。这是我的方法,如果它能帮助到任何人的话:
private Spannable buildRainbowText(String pack_name) {
int[] colors = new int[]{Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE, Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE, Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE, Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE};
Spannable word = new SpannableString(pack_name);
for(int i = 0; i < word.length(); i++) {
word.setSpan(new ForegroundColorSpan(colors[i]), i, i+1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
return word;
}
然后我只是setText(buildRainboxText(pack_name)); 注意,我传入的所有单词都在15个字符以下,这只是重复5种颜色3次-你需要根据你的使用调整数组的颜色/长度!
使用SpannableStringBuilder
SpannableStringBuilder builder = new SpannableStringBuilder();
SpannableString str1= new SpannableString("Text1");
str1.setSpan(new ForegroundColorSpan(Color.RED), 0, str1.length(), 0);
builder.append(str1);
SpannableString str2= new SpannableString(appMode.toString());
str2.setSpan(new ForegroundColorSpan(Color.GREEN), 0, str2.length(), 0);
builder.append(str2);
TextView tv = (TextView) view.findViewById(android.R.id.text1);
tv.setText( builder, TextView.BufferType.SPANNABLE);
尽可能使用SpannableBuilder类而不是HTML格式,因为它比HTML格式解析更快。 在Github上查看我自己的基准测试“SpannableBuilder vs HTML” 谢谢!
我已经这么做了,试试吧:
TextView textView=(TextView)findViewById(R.id.yourTextView);//init
//here I am appending two string into my textView with two diff colors.
//I have done from fragment so I used here getActivity(),
//If you are trying it from Activity then pass className.this or this;
textView.append(TextViewUtils.getColoredString(getString(R.string.preString),ContextCompat.getColor(getActivity(),R.color.firstColor)));
textView.append(TextViewUtils.getColoredString(getString(R.string.postString),ContextCompat.getColor(getActivity(),R.color.secondColor)));
在你的TextViewUtils类中添加这个方法:
/***
*
* @param mString this will setup to your textView
* @param colorId text will fill with this color.
* @return string with color, it will append to textView.
*/
public static Spannable getColoredString(String mString, int colorId) {
Spannable spannable = new SpannableString(mString);
spannable.setSpan(new ForegroundColorSpan(colorId), 0, spannable.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
Log.d(TAG,spannable.toString());
return spannable;
}
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