Token Edittext (Field) android

问题:

Because some reason I need a Edittext like the red part in this image :

Whenever the user press delete button on keyboard, the edittext will delete one token instead of one word. So, my question are : Do we have an exist control like it? or If not, do you know how can customize one. Note : I don't need it the same 100%. Right now, I am thinking about using a TextWatcher or setKeyListener method for delete feature.

Thank you so much for any help. And sorry because my English is not really well.

回答1:

I've put together TokenAutoComplete on github for our use at Splitwise. I couldn't find anything like this in the Android SDK, so I made my own.

The only place where the behavior of my control will not match your expectations is that when you delete the most-recently completed token, it turns into the word again. All other tokens get completely deleted.

Here's a basic example:

public class ContactsCompletionView extends TokenCompleteTextView {
    public ContactsCompletionView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected View getViewForObject(Object object) {
        Person p = (Person)object;

        LayoutInflater l = (LayoutInflater)getContext().getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        LinearLayout view = (LinearLayout)l.inflate(R.layout.contact_token, (ViewGroup)ContactsCompletionView.this.getParent(), false);
        ((TextView)view.findViewById(R.id.name)).setText(p.getEmail());

        return view;
    }

    @Override
    protected Object defaultObject(String completionText) {
        //Stupid simple example of guessing if we have an email or not
        int index = completionText.indexOf('@');
        if (index == -1) {
            return new Person(completionText, completionText.replace(" ", "") + "@example.com");
        } else {
            return new Person(completionText.substring(0, index), completionText);
        }
    }
}

Layout code for contact_token (you can use any kind of layout here or could throw an ImageView in if you want images in the token)

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content">

    <TextView android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/token_background"
        android:padding="5dp"
        android:textColor="@android:color/white"
        android:textSize="18sp" />

</LinearLayout>

Token backgound drawable

<shape xmlns:android="http://schemas.android.com/apk/res/android" >
    <solid android:color="#ffafafaf" />
    <corners
        android:topLeftRadius="5dp"
        android:bottomLeftRadius="5dp"
        android:topRightRadius="5dp"
        android:bottomRightRadius="5dp" />
</shape>

Person object code

public class Person implements Serializable {
    private String name;
    private String email;

    public Person(String n, String e) { name = n; email = e; }

    public String getName() { return name; }
    public String getEmail() { return email; }

    @Override
    public String toString() { return name; }
}

Sample activity

public class TokenActivity extends Activity {
    ContactsCompletionView completionView;
    Person[] people;
    ArrayAdapter<Person> adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        people = new Person[]{
                new Person("Marshall Weir", "[e-mail]"),
                new Person("Margaret Smith", "[e-mail]"),
                new Person("Max Jordan", "[e-mail]"),
                new Person("Meg Peterson", "[e-mail]"),
                new Person("Amanda Johnson", "[e-mail]"),
                new Person("Terry Anderson", "[e-mail]")
        };

        adapter = new ArrayAdapter<Person>(this, android.R.layout.simple_list_item_1, people);

        completionView = (ContactsCompletionView)findViewById(R.id.searchView);
        completionView.setAdapter(adapter);
    }
}

Layout code

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.tokenautocomplete.ContactsCompletionView
        android:id="@+id/searchView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</RelativeLayout>

回答2:

The Android AOSP email client has something like you seem trying to do. It is open source.

From this commit you see, that Google calls "chip" what you call "badge".

You should find all information regarding what it takes to implement such chips from the commit above, which I guess, was the first time Google introduced such chips (at least to mail), or in the whole source of the AOSP email client:

Integrate chips into Email.

Change-Id: Ice037a55a169037f725a667fad7714c7e9580b86