android怎么处理表情到数据库,Androidemoji表情处理

在开发中很多后台数据库不支持emoji表情插入，那么需要我们在EditText结果输出时过滤掉。同样emoji表情也是有着对应的Unicode，相关参考

Emoji Unicode Tables  下面我就针对它的几个区来实现我们的过滤。

通过自定义InputFilter过滤器来实现，代码如下

import android.text.InputFilter;

import android.text.Spanned;

import android.text.TextUtils;

/**

* 过滤emoji表情

* Created by pwe on 2018/5/12.

*/

public class EmojiFilter implements InputFilter {

public EmojiFilter() {

super();

}

@Override

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

return filterEmoji(source);

}

/**

1F30D - 1F567

1F600 - 1F636

24C2 - 1F251

1F680 - 1F6C0

2702 - 27B0

1F601 - 1F64F

*/

private boolean isEmojiCharacter(int first) {

return !

((first == 0x0) ||

(first == 0x9) ||

(first == 0xA) ||

(first == 0xD) ||

((first >= 0x20) && (first <= 0xD7FF)) ||

((first >= 0xE000) && (first <= 0xFFFD)) ||

((first >= 0x10000))) ||

(first == 0xa9 || first == 0xae || first == 0x2122 ||

first == 0x3030 || (first >= 0x25b6 && first <= 0x27bf) ||

first == 0x2328 || (first >= 0x23e9 && first <= 0x23fa))

|| ((first >= 0x1F000 && first <= 0x1FFFF))

|| ((first >= 0x2702) && (first <= 0x27B0))

|| ((first >= 0x1F601) && (first <= 0x1F64F));

}

private boolean containsEmoji(String str) {

if (TextUtils.isEmpty(str)) {

return false;

}

for (int i = 0; i

int cp = str.codePointAt(i);

if (isEmojiCharacter(cp)) {

return true;

}

}

return false;

}

private CharSequence filterEmoji(CharSequence c) {

if (!containsEmoji(c.toString())) {

return c;

}

StringBuilder buf = null;

int len = c.length();

for (int i = 0; i

char codePoint = c.charAt(i);

if (!isEmojiCharacter(codePoint)) {

if (buf == null) {

buf = new StringBuilder(c.length());

}

buf.append(codePoint);

}

}

if (buf == null) {

return "";

}

return buf;

}

}

接下来就是具体的引用啦

mEditText.setFilters(new InputFilter[]{new EmojiFilter()});ok，搞定，现在已经无法再输入emoji表情了