@Retention(value=CLASS)
@Target(value=METHOD)
public @interface BeforeTextChange
This annotation is intended to be used on methods to receive events defined
by
TextWatcher.beforeTextChanged(CharSequence s, int start, int count, int after)
before the text is changed on the targeted TextView or subclass of TextView.
The annotation value should be one or several R.id.* fields that refers to TextView or subclasses of TextView. If not set, the method name will be used as the R.id.* field name.
The method MAY have multiple parameters:
TextView
parameter to know which view has
targeted this eventCharSequence
parameter to get the text before
modification.Example :@BeforeTextChange(R.id.helloTextView) void beforeTextChangedOnHelloTextView(TextView hello, CharSequence text, int start, int count, int after) { // Something Here } @BeforeTextChange void helloTextViewBeforeTextChanged(TextView hello) { // Something Here } @BeforeTextChange({R.id.editText, R.id.helloTextView}) void beforeTextChangedOnSomeTextViews(TextView tv, CharSequence text) { // Something Here } @BeforeTextChange(R.id.helloTextView) void beforeTextChangedOnHelloTextView() { // Something Here }
AfterTextChange
,
TextChange
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