在对话框内悬停时更改视图的背景

Question

我正在尝试构建共享对话框。 在这个分享对话框中，我有 facebook、whatsapp、mail 等等。

我正在尝试使每个视图的背景在触摸时发生变化以指示触摸。 到目前为止没有问题。 问题是我还想让用户将手指移动到其他选项中，当他这样做时，以前的背景会恢复到原来的颜色并且新的视图背景会发生变化。

我根本无法获得悬停事件，只要第一个onTouchEvent还活着，我就无法触发其他onTouchEvent。

这是我目前的代码：

public class customDialogFragment1 extends DialogFragment {


public customDialogFragment1() {
}

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {

    postShareUrl=getActivity().getResources().getString(R.string.servicePostShareUrl);
    id=getArguments().getString("body");
    postTitle=getArguments().getString("subject");
    Intent sendIntent = new Intent(android.content.Intent.ACTION_SEND);
    sendIntent.setType("text/plain");

    Dialog dialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar);

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(),android.R.style.Theme_Translucent_NoTitleBar);
    LayoutInflater inflater = (LayoutInflater) getActivity()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View v = inflater.inflate(R.layout.share_title_layout, null);
    // Set title divider color


    TextView txtTitle= (TextView) v.findViewById(R.id.share_title);
    Typeface tf = Typeface.createFromAsset(getActivity().getResources().getAssets(),
            "fonts/OpenSansHebrew-Bold.ttf");

    txtTitle.setTypeface(tf);
    View layout=inflater.inflate(R.layout.custom_share_layout_inner,null);
    builder.setView(layout);

    ImageView facebook= (ImageView) layout.findViewById(R.id.imgFaceebook);
    ImageView whatsapp= (ImageView) layout.findViewById(R.id.imgWhatsapp);
    ImageView more= (ImageView) layout.findViewById(R.id.imgMore);
    ImageView mail= (ImageView) layout.findViewById(R.id.imgMail);

    facebook.setOnClickListener(imageClickListener);
    whatsapp.setOnClickListener(imageClickListener);
    more.setOnClickListener(imageClickListener);
    mail.setOnClickListener(imageClickListener);

    List activities = getActivity().getPackageManager().queryIntentActivities(sendIntent, 0);
    Context context=(Activity)getActivity();
    for(int i=0;i<activities.size();i++) {
        ResolveInfo appPacageName = (ResolveInfo) activities.get(i);
        Log.i("pacageName", appPacageName.toString());
        if (appPacageName.toString().contains("com.facebook.composer")) {
            shareCheckList[0] = appPacageName;
        } else if (appPacageName.toString().contains("whatsapp")) {
            shareCheckList[1] = appPacageName;
        } else if (appPacageName.toString().contains("mail")) {
            shareCheckList[2] = appPacageName;
        }
    }
    dialog.setContentView(layout);
    Window window = dialog.getWindow();
    window.setLayout(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    window.setGravity(Gravity.CENTER);
    window.setLayout(MainActivity.screenWidth-90,350);

    return dialog;
}

这是我的 ontouch 监听器：

private View.OnClickListener imageClickListener=new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Intent intent = new Intent(android.content.Intent.ACTION_SEND);
        intent.setType("text/plain");
        intent.putExtra(Intent.EXTRA_SUBJECT,getArguments().getString("subject"));
        intent.putExtra(Intent.EXTRA_TEXT,getArguments().getString("body"));

        switch (v.getId()){
            case R.id.imgFaceebook:

                    if(!shareCheckList[0].toString().isEmpty()){
                        intent.setClassName(shareCheckList[0].activityInfo.packageName, shareCheckList[0].activityInfo.name);                        
                        ((Activity)getActivity()).startActivity(intent);
                break;
            case R.id.imgWhatsapp:                   
                        intent.setClassName(shareCheckList[1].activityInfo.packageName, shareCheckList[1].activityInfo.name);                         
                        ((Activity)getActivity()).startActivity(intent);
                }
                break;
            case R.id.imgMail:
                try{                      
                        intent.setClassName(shareCheckList[2].activityInfo.packageName, shareCheckList[2].activityInfo.name);

                        ((Activity)getActivity()).startActivity(intent);


                break;
            case R.id.imgMore:
                CustomDialogFragment2 cdf=new CustomDialogFragment2();
                Bundle bundle = new Bundle();
                bundle.putString("body",id);
                bundle.putString("subject", postTitle);
                cdf.setArguments(bundle);
                cdf.show(getActivity().getFragmentManager(), "customDialogFragment2");
                break;

        }

    }
};

Answer 1

如果我理解正确，你应该使用状态列表：

http://developer.android.com/guide/topics/resources/drawable-resource.html#StateList

只需为每个 ImageView 创建 xml 可绘制文件，并为每个状态项设置您需要的来源。