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我有一组单选按钮,每个单选按钮都有一个编辑文本,我想在焦点退出时保存编辑文本值或单选按钮值,在焦点关闭时执行自动保存。请帮我。

提前致谢。

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2 回答 2

1

您可以在和之后使用TextWatcher来做某事。 这是一个例子:onTextChangedbeforeTextChangedafterTextChanged


            final EditText ed = findViewById(R.id.edittext);
            final TextView tv = findViewById(R.id.textview);

            ed.addTextChangedListener(new TextWatcher() {

                @Override
                public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {

                }

                @Override
                public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                        int arg3) {

                }

                @Override
                public void afterTextChanged(Editable arg0) {
                    //Save Your Text With SharedPreference
                    SharedPreferences sp = getSharedPreferences("TEST", 0);
                    SharedPreferences.Editor ed_sp = sp.edit();
                    ed_sp.putString("myText", ed.getText().toString());
                    ed_sp.commit();
                    ShowSavedText();

                }
                void ShowSavedText(){
                    SharedPreferences sp = getSharedPreferences("TEST", 0);
                    String savedText = sp.getString("myText", "");
                    tv.setText(savedText);
                }
            });
于 2014-10-09T13:17:49.180 回答
0

这是您要求的答案。

edit_Text.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus){
    Toast.makeText(getApplicationContext(), "got the focus",        Toast.LENGTH_LONG).show();
}else {
    Toast.makeText(getApplicationContext(), " auto save Here",     Toast.LENGTH_LONG).show();
}

} });

希望这会有所帮助。

于 2014-10-09T13:13:03.470 回答