MultiArgTestAdapter.java revision e9b33bac04bb1ce1444d7f1744fcec1ecd3a57da 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *      http://www.apache.org/licenses/LICENSE-2.0
7 * Unless required by applicable law or agreed to in writing, software
8 * distributed under the License is distributed on an "AS IS" BASIS,
9 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
10 * See the License for the specific language governing permissions and
11 * limitations under the License.
12 */
13
14package android.databinding.testapp.adapter;
15
16
17import android.databinding.BaseObservable;
18import android.databinding.Bindable;
19import android.databinding.BindingAdapter;
20import android.view.View;
21import android.databinding.testapp.BR;
22import android.widget.TextView;
23
24import org.apache.commons.lang3.StringUtils;
25
26public class MultiArgTestAdapter {
27
28    public static String join(BaseMultiBindingClass... classes) {
29        StringBuilder sb = new StringBuilder();
30        for(BaseMultiBindingClass instance : classes) {
31            sb.append(instance == null ? "??" : instance.getValue());
32        }
33        return sb.toString();
34    }
35
36    public static String join(String... strings) {
37        StringBuilder sb = new StringBuilder();
38        for(String str : strings) {
39            sb.append(str == null ? "??" : str);
40        }
41        return sb.toString();
42
43    }
44
45    @BindingAdapter(attributes={"android:class1", "android:class2"})
46    public static void setBoth(TextView view, MultiBindingClass1 class1,
47                                        MultiBindingClass2 class2) {
48        view.setText(join(class1, class2));
49    }
50
51    @BindingAdapter(attributes={"android:class1str", "android:class2str"})
52    public static void setBoth(TextView view, String str1,
53                               String str2) {
54        view.setText(join(str1, str2));
55    }
56
57    @BindingAdapter(attributes={"android:class1"})
58    public static void setClass1(TextView view, MultiBindingClass1 class1) {
59        view.setText(class1.getValue());
60    }
61
62    @BindingAdapter(attributes={"android:classStr"})
63    public static void setClassStr(TextView view, String str) {
64        view.setText(str);
65    }
66
67    @BindingAdapter(attributes={"android:class2"})
68    public static void setClass2(TextView view, MultiBindingClass2 class2) {
69        view.setText(class2.getValue());
70    }
71
72    public static class MultiBindingClass1 extends BaseMultiBindingClass {
73
74    }
75
76    public static class MultiBindingClass2 extends BaseMultiBindingClass {
77
78    }
79
80    public static class BaseMultiBindingClass extends BaseObservable {
81        View mSetOn;
82        @Bindable
83        String mValue;
84        public View getSetOn() {
85            return mSetOn;
86        }
87
88        public String getValue() {
89            return mValue;
90        }
91
92        public void setValue(String value, boolean notify) {
93            mValue = value;
94            if (notify) {
95                notifyPropertyChanged(BR.value);
96            }
97        }
98
99        public void clear() {
100            mSetOn = null;
101        }
102    }
103}
104