Question

我使用textviews作为列表，点击每个textview打开一个片段。我想在单击时更改textview的背景及其颜色。单击其他文本视图，之前的背景颜色和文本颜色应更改为其默认颜色。我正在使用Butterknife将所有textviews绑定到一个数组中。

这是我的代码：

public class AccountMenuFragment extends Fragment {

private accountMenuCallback callback;
private boolean stateChanged;

public AccountMenuFragment() {
    // Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setRetainInstance(true);
    try {
        callback = (accountMenuCallback) getActivity();
    } catch (ClassCastException e) {
        e.printStackTrace();
        throw new ClassCastException("Calling Activity/Fragment must implement DialogClickListener interface");
    }
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_my_account, container, false);
    ButterKnife.bind(this, view);
    return view;
}

@OnClick({R.id.rlAccount, R.id.rlBusiness, R.id.rlIndustry,
        R.id.rlVerification, R.id.rlBank, R.id.rlPersonal, R.id.rlPassword})
public void changeColor(TextView textView) {
    stateChanged = !stateChanged;
    if (stateChanged) {
        // reset background to default;
        textView.setTextColor(getResources().getColor(R.color.text_color));
        textView.setBackgroundColor(Color.WHITE);
    } else {
        textView.setTextColor(Color.WHITE);
        textView.setBackgroundColor(getResources().getColor(R.color.text_color_blue));
    }
}}

但它会在双击同一文本视图时更改其颜色。但我希望只需点击一下即可更改并恢复之前的内容。

Answer 1

将第一个视图设置为默认选中，并将其声明为lastSelectedView。

public class AccountMenuFragment extends Fragment {

private accountMenuCallback callback;
@Bind(R.id.rlAccount)
TextView lastSelectedView;

public AccountMenuFragment() {
    // Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setRetainInstance(true);
    try {
        callback = (accountMenuCallback) getActivity();
    } catch (ClassCastException e) {
        e.printStackTrace();
        throw new ClassCastException("Calling Activity/Fragment must implement DialogClickListener interface");
    }
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_my_account, container, false);
    ButterKnife.bind(this, view);
    return view;
}

@OnClick({R.id.rlAccount, R.id.rlBusiness, R.id.rlIndustry,R.id.rlVerification, R.id.rlBank, R.id.rlPersonal, R.id.rlPassword})
public void changeColorOfTextView(TextView textView) {
   // reset background to default;
   lastSelectedView.setTextColor(getResources().getColor(R.color.text_color));
   lastSelectedView.setBackgroundColor(Color.WHITE);

   // change color
   textView.setTextColor(Color.WHITE);
   textView.setBackgroundColor(getResources().getColor(R.color.text_color_blue));
   lastSelectedView = textView;
}}

从一组textview更改textview颜色

1 个答案: