MultiArgTestAdapter.java revision 20c7182163d99575d382e065f5a5fe45ed6b87e2 
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({"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({"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({"android:class1"})
58    public static void setClass1(TextView view, MultiBindingClass1 class1) {
59        view.setText(class1.getValue());
60    }
61
62    @BindingAdapter({"android:classStr"})
63    public static void setClassStr(TextView view, String str) {
64        view.setText(str);
65    }
66
67    @BindingAdapter("android:class2")
68    public static void setClass2(TextView view, MultiBindingClass2 class2) {
69        view.setText(class2.getValue());
70    }
71
72    @BindingAdapter("android:val3")
73    public static void setWithOldValue(TextView view, String oldValue, String newValue) {
74        view.setText(String.format("%s -> %s", oldValue, newValue));
75    }
76
77    @BindingAdapter({"android:val3", "android:val4"})
78    public static void set2WithOldValues(TextView view, String oldValue1, String oldValue2,
79            String newValue1, String newValue2) {
80        view.setText(String.format("%s, %s -> %s, %s", oldValue1, oldValue2, newValue1, newValue2));
81    }
82
83    public static class MultiBindingClass1 extends BaseMultiBindingClass {
84
85    }
86
87    public static class MultiBindingClass2 extends BaseMultiBindingClass {
88
89    }
90
91    public static class BaseMultiBindingClass extends BaseObservable {
92        View mSetOn;
93        @Bindable
94        String mValue;
95        public View getSetOn() {
96            return mSetOn;
97        }
98
99        public String getValue() {
100            return mValue;
101        }
102
103        public void setValue(String value, boolean notify) {
104            mValue = value;
105            if (notify) {
106                notifyPropertyChanged(BR.value);
107            }
108        }
109
110        public void clear() {
111            mSetOn = null;
112        }
113    }
114}
115