EditText(7)EditText输入事件监听

 

EditText.addTextChangedListener(TextWatcher watcher);

 

void initSearch(){
        search = (EditText) findViewById(R.id.search);

        search.setOnEditorActionListener(new EditText.OnEditorActionListener(){

            @Override
            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {

                if (actionId == EditorInfo.IME_ACTION_SEND){
                    Snackbar snackbar = Snackbar.make(v, "虽然是search，但是是actionSend", Snackbar.LENGTH_SHORT);
                    snackbar.show();
                    return true;
                }
                return false;
            }
        });

        search.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                System.out.println("beforeTextChanged :" + s);
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                System.out.println("onTextChanged :" + s);
                actionBar.setTitle(s);

            }

            @Override
            public void afterTextChanged(Editable s) {
                System.out.println("afterTextChanged :" + s);
            }
        });

    }