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我有以下助手类，我保留在我的适配器旁边的文件夹中。问题是没有不必要的重复。我需要任一适配器的上下文，具体取决于助手从何处调用，即来自哪个适配器。我如何使正在传递给助手的构造函数的适配器是通用的？如何重构需要来自两个不同适配器的上下文的助手类？
电话：
在呼叫，我设置任何适配器取决于我在哪里为null之一。
private final QuickReplyDialogHelper quickReplyDialogHelper = new QuickReplyDialogHelper(this, null);
quickReplyDialogHelper.quickReplyDialog(object);
助手：
class QuickReplyDialogHelper {
private final UserProfileAdapter userProfileAdapter;
private final FeedAdapter feedAdapter;
QuickReplyDialogHelper(UserProfileAdapter userProfileAdapter, FeedAdapter feedAdapter) {
this.userProfileAdapter = userProfileAdapter;
this.feedAdapter = feedAdapter;
}
void quickReplyDialog(ParseObject object) {
if (userProfileAdapter != null) {
CharSequence colors[] = new CharSequence[]{
"1",
"2",
"3",
};
AlertDialog.Builder builder = new AlertDialog.Builder(userProfileAdapter.getmContext());
builder.setTitle("Quick Reply");
builder.setIcon(R.drawable.ic_quick_reply);
AlertDialog.Builder builder1 = builder.setItems(colors, (dialog, which) -> {
String quickReply = null;
if (which == 0) {
quickReply = "1";
Toast.makeText(userProfileAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
} else if (which == 1) {
quickReply = "2";
Toast.makeText(userProfileAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
} else if (which == 2) {
quickReply = "3";
Toast.makeText(userProfileAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
}
ParseObject message = new ParseObject("Object");
message.put(ParseConstants.KEY_SENDER_AUTHOR_POINTER, ParseUser.getCurrentUser());
message.put("replyAuthor", object.getParseObject(ParseConstants.KEY_SENDER_AUTHOR_POINTER));
String[] likedBy = new String[0];
message.put(ParseConstants.KEY_LIKED_BY, Arrays.asList(likedBy));
message.put(ParseConstants.KEY_SENDER_PARSE_OBJECT_ID, object.getObjectId());
message.put(ParseConstants.KEY_NOTIFICATION_TEXT, quickReply);
message.saveInBackground();
});
builder1.show();
}
if (feedAdapter != null) {
CharSequence colors[] = new CharSequence[]{
"1",
"2",
"3"
};
AlertDialog.Builder builder = new AlertDialog.Builder(feedAdapter.getmContext());
builder.setTitle("Quick Reep");
builder.setIcon(R.drawable.ic_quick_reply);
AlertDialog.Builder builder1 = builder.setItems(colors, (dialog, which) -> {
String quickReply = null;
if (which == 0) {
quickReply = "1";
Toast.makeText(feedAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
} else if (which == 1) {
quickReply = "2";
Toast.makeText(feedAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
} else if (which == 2) {
quickReply = "3";
Toast.makeText(feedAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
}
ParseObject message = new ParseObject("Object");
message.put(ParseConstants.KEY_SENDER_AUTHOR_POINTER, ParseUser.getCurrentUser());
message.put("replyAuthor", object.getParseObject(ParseConstants.KEY_SENDER_AUTHOR_POINTER));
String[] likedBy = new String[0];
message.put(ParseConstants.KEY_LIKED_BY, Arrays.asList(likedBy));
message.put(ParseConstants.KEY_SENDER_PARSE_OBJECT_ID, object.getObjectId());
message.put(ParseConstants.KEY_NOTIFICATION_TEXT, quickReply);
message.saveInBackground();
});
builder1.show();
}
}
}
理想的召唤：
private final QuickReplyDialogHelper quickReplyDialogHelper = new QuickReplyDialogHelper(this);
quickReplyDialogHelper.quickReplyDialog(object);
理想助手：
只是一个建设者：
CharSequence colors[] = new CharSequence[]{
"1",
"2",
"3"
};
AlertDialog.Builder builder = new AlertDialog.Builder(genericAdapter.getmContext());
builder.setTitle("Quick Reep");
builder.setIcon(R.drawable.ic_quick_reply);
AlertDialog.Builder builder1 = builder.setItems(colors, (dialog, which) -> {
String quickReply = null;
if (which == 0) {
quickReply = "1";
Toast.makeText(genericAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
} else if (which == 1) {
quickReply = "2";
Toast.makeText(genericAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
} else if (which == 2) {
quickReply = "3";
Toast.makeText(genericAdapter.getmContext(), quickReply, Toast.LENGTH_SHORT).show();
}
ParseObject message = new ParseObject("Object");
message.put(ParseConstants.KEY_SENDER_AUTHOR_POINTER, ParseUser.getCurrentUser());
message.put("replyAuthor", object.getParseObject(ParseConstants.KEY_SENDER_AUTHOR_POINTER));
String[] likedBy = new String[0];
message.put(ParseConstants.KEY_LIKED_BY, Arrays.asList(likedBy));
message.put(ParseConstants.KEY_SENDER_PARSE_OBJECT_ID, object.getObjectId());
message.put(ParseConstants.KEY_NOTIFICATION_TEXT, quickReply);
message.saveInBackground();
});
builder1.show();