请问有谁可以指点我如何在EditText中实现这些气泡或标签,就像在Google+的Stream中通过添加一个圆圈或联系人来撰写内容时看到的那样?这个矩形是一个自动完成的EditText。
请问有谁可以指点我如何在EditText中实现这些气泡或标签,就像在Google+的Stream中通过添加一个圆圈或联系人来撰写内容时看到的那样?这个矩形是一个自动完成的EditText。
android:background
和android:leftDrawable
的TextView
。 - Macarsepublic 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);
}
}
}
联系人令牌的布局代码(您可以在此处使用任何类型的布局,或者如果您想要令牌中的图像,则可以放置一个ImageView)
<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>
<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>
人物对象代码
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; }
}
示例活动
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", "marshall@example.com"),
new Person("Margaret Smith", "margaret@example.com"),
new Person("Max Jordan", "max@example.com"),
new Person("Meg Peterson", "meg@example.com"),
new Person("Amanda Johnson", "amanda@example.com"),
new Person("Terry Anderson", "terry@example.com")
};
adapter = new ArrayAdapter<Person>(this, android.R.layout.simple_list_item_1, people);
completionView = (ContactsCompletionView)findViewById(R.id.searchView);
completionView.setAdapter(adapter);
}
}
布局代码
<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>
android.text.style.DynamicDrawableSpan
子类来实现此操作。 ImageSpan
就是一个这样的例子:它使用图片替换了文本范围内的样式。onCreate()
中(或其他位置): EditText mText = (EditText) findViewById(R.id.text);
final Editable e = mText.getEditableText();
final SpannableStringBuilder sb = new SpannableStringBuilder();
sb.append("test");
sb.setSpan(new ImageSpan(this, android.R.drawable.btn_star), 0, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
e.append(sb);
我没有看到任何可以将普通文本包装成可绘制对象的类,但是通过覆盖getDrawable()
方法并自己渲染文本,这个问题可以很容易地解决。
Annotation
类将额外信息添加到文本的流程中。我猜最终答案将同时使用这两个类。 - Steve Pomeroy我在这里解决了这个问题 联系人气泡编辑框
final SpannableStringBuilder sb = new SpannableStringBuilder();
TextView tv = createContactTextView(contactName);
BitmapDrawable bd = (BitmapDrawable) convertViewToDrawable(tv);
bd.setBounds(0, 0, bd.getIntrinsicWidth(),bd.getIntrinsicHeight());
sb.append(contactName + ",");
sb.setSpan(new ImageSpan(bd), sb.length()-(contactName.length()+1),sb.length()-1,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
to_input.setText(sb);
public static Object convertViewToDrawable(View view) {
int spec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
view.measure(spec, spec);
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
Bitmap b = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(),
Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
c.translate(-view.getScrollX(), -view.getScrollY());
view.draw(c);
view.setDrawingCacheEnabled(true);
Bitmap cacheBmp = view.getDrawingCache();
Bitmap viewBmp = cacheBmp.copy(Bitmap.Config.ARGB_8888, true);
view.destroyDrawingCache();
return new BitmapDrawable(viewBmp);
}
public TextView createContactTextView(String text){
//creating textview dynamically
TextView tv = new TextView(this);
tv.setText(text);
tv.setTextSize(20);
tv.setBackgroundResource(R.drawable.oval);
tv.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_clear_search_api_holo_light, 0);
return tv;
}
android:hint="@string/myHint"
当EditText为空时,这将在其中放置灰色标签。
我决定回馈社区,创建了一个旨在解决您所遇到问题的库。该库以及示例项目可在GitHub上获得:https://github.com/RafalManka/BubbleEditText