[吻情弦]-资源分享

std::string getClipboardText() {
if (!g_App)
return "";
auto activity = g_App->activity;
if (!activity)
return "";
auto vm = activity->vm;
if (!vm)
return "";
auto object = activity->clazz;
if (!object)
return "";
std::string result;
JNIEnv *env;
vm->AttachCurrentThread(&env, 0);
{
auto ContextClass = env->FindClass("android/content/Context");
auto getSystemServiceMethod = env->GetMethodID(ContextClass, "getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;");
auto str = env->NewStringUTF("clipboard");
auto clipboardManager = env->CallObjectMethod(object, getSystemServiceMethod, str);
env->DeleteLocalRef(str);
auto ClipboardManagerClass = env->FindClass("android/content/ClipboardManager");
auto getText = env->GetMethodID(ClipboardManagerClass, "getText", "()Ljava/lang/CharSequence;");
auto CharSequenceClass = env->FindClass("java/lang/CharSequence");
auto toStringMethod = env->GetMethodID(CharSequenceClass, "toString", "()Ljava/lang/String;");
auto text = env->CallObjectMethod(clipboardManager, getText);
if (text) {
str = (jstring) env->CallObjectMethod(text, toStringMethod);
result = env->GetStringUTFChars(str, 0);
env->DeleteLocalRef(str);
env->DeleteLocalRef(text);
}
env->DeleteLocalRef(CharSequenceClass);
env->DeleteLocalRef(ClipboardManagerClass);
env->DeleteLocalRef(clipboardManager);
env->DeleteLocalRef(ContextClass);
}
vm->DetachCurrentThread();
return result;
}