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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_ANDROID_JNI_ANDROID_H_
#define BASE_ANDROID_JNI_ANDROID_H_
#include <jni.h>
#include <sys/types.h>
namespace base {
namespace android {
// Attach the current thread to the VM (if necessary) and return the JNIEnv*.
JNIEnv* AttachCurrentThread();
// Detach the current thread from VM if it is attached.
void DetachFromVM();
// Initializes the global JVM. It is not necessarily called before
// InitApplicationContext().
void InitVM(JavaVM* vm);
// Initializes the global application context object. The |context| should be
// the global reference of application context object. It is not necessarily
// called after InitVM().
// TODO: We might combine InitVM() and InitApplicationContext() into one method.
void InitApplicationContext(jobject context);
// Returns the application context assigned by InitApplicationContext().
jobject GetApplicationContext();
// Get the method ID for a method. Will clear the pending Java
// exception and return 0 if the method is not found.
jmethodID GetMethodID(JNIEnv* env,
jclass clazz,
const char* const method,
const char* const jni_signature);
// Get the method ID for a class static method. Will clear the pending Java
// exception and return 0 if the method is not found.
jmethodID GetStaticMethodID(JNIEnv* env,
jclass clazz,
const char* const method,
const char* const jni_signature);
// Returns true if an exception is pending in the provided JNIEnv*.
// If an exception is pending, it is printed.
bool CheckException(JNIEnv* env);
} // namespace android
} // namespace base
#endif // BASE_ANDROID_JNI_ANDROID_H_
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