Android EditText Mask The expression of third-party IME

The expression of the third-party input method may bring some trouble to the development, generally like the server upload characters are ordinary characters, but testing, is to take out Sogou input method, a few expressions,

Big problem came, either show the exception, or direct crash, but there are very few models, will support, may be the third-party ROM to the Android TextView do some processing, so, we can only kill the bloody expression of the specific method is as follows:

The first is to add Textwatcher to the Edittextview.



When judging the change of the character, the type of the character, whether it is a character, otherwise delete the original character, re-enter;

1Medittextview.addtextchangedlistener (NewTextwatcher () {2 3 @Override4              Public voidaftertextchanged (Editable Editable) {5                 intindex = Contenttext.getselectionstart ()-1;6                 if(Index > 0) {7                     if(Isemojicharacter (Editable.charat (index))) {8Editable edit =Contenttext.gettext ();9Edit.delete (index, index + 1);Ten                     } One                 } A             } -  - @Override the              Public voidBeforetextchanged (Charsequence S,intStartintCountintAfter ) { -  -             } -  + @Override -              Public voidOnTextChanged (Charsequence S,intStartintBefore,intcount) { +  A             } at});

Here is the judge whether the character is an expression;

1     Private Static boolean isemojicharacter (char  codepoint) {2         return ! ( (codepoint = = 0x0) | | (codepoint = = 0x9) | | (codepoint = = 0xA) | | (codepoint = = 0xD) | | ((codepoint >= 0x20) && odepoint <= 0xd7ff)) | | ((codepoint >= 0xe000) && (codepoint <= 0xFFFD)) | | ((codepoint >= 0x10000) && (codepoint <= 0x10ffff)); 3     }

Android EditText Mask The expression of third-party IME