Android (Firestore) : Unable to add or update or set (SetOptions. 合并) 已在 Firestore 中创建的文档中的字段

Question

我正在尝试向 firestore 数据库中“用户”集合下已创建的文档添加新字段。从第一个 Activity 开始，我将名称、描述和性别等基本信息添加到 firestore 数据库 (collection("users").document(uid)) 并且它起作用了。但是，当我尝试将新字段(来自第二个 Activity )添加到同一文档时，它不起作用。我尝试使用 set、SetOptions.merge、update，但没有任何效果。即使我尝试添加新集合，它也无法正常工作。有人可以帮我解决这个问题吗？提前致谢。我的代码在这两个 Activity 中。

第一个 Activity (BasicInfo.java)(工作)

    String uid = user.getUid();

    Map<String, Object> dataToSave = new HashMap<>();
    dataToSave.put(NAME, nameText);
    dataToSave.put(ABOUT, aboutText);
    dataToSave.put(GENDER, userGender);

    db.collection("users").document(uid).set(dataToSave).addOnCompleteListener(new OnCompleteListener<Void>() {
        @Override
        public void onComplete(@NonNull Task<Void> task) {
            if (task.isSuccessful()) {
                Intent userPreIntent = new Intent(BasicInfo.this, UserPre.class);
                startActivity(userPreIntent);
                finish();
            } else {
                Toast.makeText(getApplicationContext(), "There was some problem", Toast.LENGTH_SHORT).show();
            }
        }
    });

第二个 Activity (UserPre.java)(不工作)

    Map<String, Object> data = new HashMap<>();
    data.put(STYLE, styleBeauty);
    data.put(HUMOR, humor);
    data.put(FITNESS, fitness);
    data.put(TRAVEL, travel);
    data.put(PHOTOGRAPHY, photography);
    data.put(MUSIC, music);
    data.put(DANCE, dance);
    data.put(ART, art);
    data.put(FASHION, fashion);

    String uid = user.getUid();

    db.collection("user").document(uid).set(data).addOnCompleteListener(new OnCompleteListener<Void>() {
        @Override
        public void onComplete(@NonNull Task<Void> task) {
            if (task.isSuccessful()) {
                Toast.makeText(getApplicationContext(), "Data Added", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(getApplicationContext(), "There was some problem", Toast.LENGTH_SHORT).show();
            }
        }
    });

Answer 1

您可以添加一个 FailureListener，它会告诉您 logcat 中的错误。

db.collection("user").document(uid).set(data).addOnCompleteListener(new OnCompleteListener<Void>() {
    @Override
    public void onComplete(@NonNull Task<Void> task) {
        if (task.isSuccessful()) {
            Toast.makeText(getApplicationContext(), "Data Added", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(getApplicationContext(), "There was some problem", Toast.LENGTH_SHORT).show();
        }
    }
})
.addOnFailureListener(new OnFailureListener() {
    @Override
    public void onFailure(@NonNull Exception e) {
        Log.w(TAG, "Error writing document", e);
    }
});