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      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 
     17 #include <stdio.h>
     18 #include <assert.h>
     19 
     20 #include "jni.h"
     21 #include <android_runtime/AndroidRuntime.h>
     22 #include <utils/misc.h>
     23 
     24 // ----------------------------------------------------------------------------
     25 
     26 namespace android {
     27 
     28 // ----------------------------------------------------------------------------
     29 
     30 const char* const kClassPathName = "android/animation/PropertyValuesHolder";
     31 
     32 static jmethodID android_animation_PropertyValuesHolder_getIntMethod(
     33         JNIEnv* env, jclass pvhClass, jclass targetClass, jstring methodName)
     34 {
     35     const char *nativeString = env->GetStringUTFChars(methodName, 0);
     36     jmethodID mid = env->GetMethodID(targetClass, nativeString, "(I)V");
     37     env->ReleaseStringUTFChars(methodName, nativeString);
     38     return mid;
     39 }
     40 
     41 static jmethodID android_animation_PropertyValuesHolder_getFloatMethod(
     42         JNIEnv* env, jclass pvhClass, jclass targetClass, jstring methodName)
     43 {
     44     const char *nativeString = env->GetStringUTFChars(methodName, 0);
     45     jmethodID mid = env->GetMethodID(targetClass, nativeString, "(F)V");
     46     env->ReleaseStringUTFChars(methodName, nativeString);
     47     return mid;
     48 }
     49 
     50 static void android_animation_PropertyValuesHolder_callIntMethod(
     51         JNIEnv* env, jclass pvhObject, jobject target, jmethodID methodID, int arg)
     52 {
     53     env->CallVoidMethod(target, methodID, arg);
     54 }
     55 
     56 static void android_animation_PropertyValuesHolder_callFloatMethod(
     57         JNIEnv* env, jclass pvhObject, jobject target, jmethodID methodID, float arg)
     58 {
     59     env->CallVoidMethod(target, methodID, arg);
     60 }
     61 
     62 static JNINativeMethod gMethods[] = {
     63     {   "nGetIntMethod", "(Ljava/lang/Class;Ljava/lang/String;)I",
     64             (void*)android_animation_PropertyValuesHolder_getIntMethod },
     65     {   "nGetFloatMethod", "(Ljava/lang/Class;Ljava/lang/String;)I",
     66             (void*)android_animation_PropertyValuesHolder_getFloatMethod },
     67     {   "nCallIntMethod", "(Ljava/lang/Object;II)V",
     68             (void*)android_animation_PropertyValuesHolder_callIntMethod },
     69     {   "nCallFloatMethod", "(Ljava/lang/Object;IF)V",
     70             (void*)android_animation_PropertyValuesHolder_callFloatMethod }
     71 };
     72 
     73 int register_android_animation_PropertyValuesHolder(JNIEnv* env)
     74 {
     75     return AndroidRuntime::registerNativeMethods(env,
     76             kClassPathName, gMethods, NELEM(gMethods));
     77 }
     78 
     79 };
     80