PropertyValuesHolder_Delegate.java revision e05bb956ce429618fd4f971a9dc708b9313c59ea 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.animation;
18
19import com.android.layoutlib.bridge.impl.DelegateManager;
20import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
21
22/**
23 * Delegate implementing the native methods of android.animation.PropertyValuesHolder
24 *
25 * Through the layoutlib_create tool, the original native methods of PropertyValuesHolder have been
26 * replaced by calls to methods of the same name in this delegate class.
27 *
28 * Because it's a stateless class to start with, there's no need to keep a {@link DelegateManager}
29 * around to map int to instance of the delegate.
30 *
31 * The main goal of this class' methods are to provide a native way to access setters and getters
32 * on some object. In this case we want to default to using Java reflection instead so the native
33 * methods do nothing.
34 *
35 */
36/*package*/ class PropertyValuesHolder_Delegate {
37
38    @LayoutlibDelegate
39    /*package*/ static long nGetIntMethod(Class<?> targetClass, String methodName) {
40        // return 0 to force PropertyValuesHolder to use Java reflection.
41        return 0;
42    }
43
44    @LayoutlibDelegate
45    /*package*/ static long nGetFloatMethod(Class<?> targetClass, String methodName) {
46        // return 0 to force PropertyValuesHolder to use Java reflection.
47        return 0;
48    }
49
50    @LayoutlibDelegate
51    /*package*/ static int nGetMultipleIntMethod(Class<?> targetClass, String methodName,
52            int numParams) {
53        // TODO: return the right thing.
54        return 0;
55    }
56
57    @LayoutlibDelegate
58    /*package*/ static int nGetMultipleFloatMethod(Class<?> targetClass, String methodName,
59            int numParams) {
60        // TODO: return the right thing.
61        return 0;
62    }
63
64    @LayoutlibDelegate
65    /*package*/ static void nCallIntMethod(Object target, long methodID, int arg) {
66        // do nothing
67    }
68
69    @LayoutlibDelegate
70    /*package*/ static void nCallFloatMethod(Object target, long methodID, float arg) {
71        // do nothing
72    }
73
74    @LayoutlibDelegate
75    /*package*/ static void nCallTwoIntMethod(Object target, long methodID, int arg1,
76            int arg2) {
77        // do nothing
78    }
79
80    @LayoutlibDelegate
81    /*package*/ static void nCallFourIntMethod(Object target, long methodID, int arg1,
82            int arg2, int arg3, int arg4) {
83        // do nothing
84    }
85
86    @LayoutlibDelegate
87    /*package*/ static void nCallMultipleIntMethod(Object target, long methodID,
88            int[] args) {
89        // do nothing
90    }
91
92    @LayoutlibDelegate
93    /*package*/ static void nCallTwoFloatMethod(Object target, long methodID, float arg1,
94            float arg2) {
95        // do nothing
96    }
97
98    @LayoutlibDelegate
99    /*package*/ static void nCallFourFloatMethod(Object target, long methodID, float arg1,
100            float arg2, float arg3, float arg4) {
101        // do nothing
102    }
103
104    @LayoutlibDelegate
105    /*package*/ static void nCallMultipleFloatMethod(Object target, long methodID,
106            float[] args) {
107        // do nothing
108    }
109}
110